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T5 FAQ - Everything we know about the T5

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T5 FAQ - Everything we know about the T5

Old 10-20-2008, 04:28 PM
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Re: T5 FAQ - Everything we know about the T5

So Im assuming they are externally the same so that a wc t5 would be a direct bolt in upgrade for a non wc t5, correct?
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Old 10-20-2008, 04:33 PM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by Hubes View Post
So Im assuming they are externally the same so that a wc t5 would be a direct bolt in upgrade for a non wc t5, correct?
Yes.

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Old 10-20-2008, 07:50 PM
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Re: T5 FAQ - Everything we know about the T5

I GOT A 1357-071 FROM A JUNK YARD AND PUTTING TO BEHING MY 350 BLOCK IS THE TRANS WORTH USING OR IS JUNK AND IF SO WHAT WILL I
HAVE TO CHANGE TO MAKE IT WORK?
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Old 10-21-2008, 03:12 AM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by jdickerscheid View Post
I GOT A 1357-071 FROM A JUNK YARD AND PUTTING TO BEHING MY 350 BLOCK IS THE TRANS WORTH USING OR IS JUNK AND IF SO WHAT WILL I
HAVE TO CHANGE TO MAKE IT WORK?
According to the chart near the beginning of this thread, an 071 model is a V6 trans. A V6 trans is definitely not worth running behind a V8. The ratios are crap for use with a V8 motor. In addition to that, you'd have to get a custom clutch disc that's the correct diameter (10.4") with a special 14 spline hub. The V8 T5's use a 26 spline input shaft. Your best bet would be to sell the V6 trans on ebay and put the money towards a V8 trans.
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Old 12-16-2008, 08:52 PM
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Re: T5 FAQ - Everything we know about the T5

I just thought I'd add this. I have broke several T5 transmissions in my 4X4 S10 (with a '94 Camaro 3.4 and SFI). It's a little hard to find 4X4 T5 transmissions, so I have converted several T4 transmissions into NWC T5s. There are some T4 transmissions that have the extention on the counter shaft that allows you to add 5th gear to it. By changing the internal shift linkage and the extention housing you can make it a T5.

Last edited by big gear head; 12-16-2008 at 09:19 PM.
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Old 01-03-2009, 08:20 PM
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Re: T5 FAQ - Everything we know about the T5

Im buying a t-5 that came out of a camaro with a 3.1 v6 i need to know if the bellhousing on that tranny will mount to the 2.8 v6
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Old 03-11-2009, 02:45 PM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by nate5490 View Post
Im buying a t-5 that came out of a camaro with a 3.1 v6 i need to know if the bellhousing on that tranny will mount to the 2.8 v6
Yes, only difference is the internals, engines are identical externally.
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Old 03-13-2009, 06:34 PM
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Re: T5 FAQ - Everything we know about the T5

seeing as theres confusion on what fluid to use in the non-wc t5 Im wondering, has anyone tried synchromesh? Im thinking its similar to 5w-30 and it seems someones used just about everything else. Im just wondering if it might be a happy medium between gear oil and atf. also its been said synthetics should be avoided, is that just when using atf or for all fluid? thanks
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Old 03-14-2009, 09:40 PM
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Re: T5 FAQ - Everything we know about the T5

If you unit has a tag bolted to the tailhousing these #'s represent world class units:
Three Digits of Part Number: 1352-XXX)
114 thru 116, 126, 134, 141, 155, 162, 165,
167 thru 169, 174 thru 177, 184, 194 thru 200, 202 thru 205,
207 229, 238, 247, 248, 249, 251, 254,
258, 260
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Old 03-20-2009, 01:38 PM
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Re: T5 FAQ - Everything we know about the T5

Guys I need some help. I'm replacing the fluid for the first time on my WC T-5.

I need to know the fluid capacity, because I cannot remove the fill plug, even after soaking it in WD-40. Whoever tightened it on last really did it - I put a breaker bar combined with a fat 2 foot pipe for leverage and it WOULDN'T EVEN BUDGE =[
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Old 03-20-2009, 04:49 PM
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Re: T5 FAQ - Everything we know about the T5

5.90PTS. (2.8L)
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Old 03-20-2009, 08:22 PM
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Re: T5 FAQ - Everything we know about the T5

Thanks iroc_zz.
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Old 03-25-2009, 11:56 PM
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Re: T5 FAQ - Everything we know about the T5

Ok. I have read a good bit of info in this area, but I have a few more questions that I did not see asked. If they was asked I missed them, anyways. First question is, Compared to a TH350, is a T5 the same length? And second question is, The bar that goes from tail shaft of the transmission to the rear end, will it bolt directly to a T5?
This is the deal, I want to swap my automatic for a straight drive. What is the best route? I have a 1982 with a 350 bored 0.030 over with a TH-350 turbo. The car was a 305 with a 200 metric. Any help would be appreciated.
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Old 03-26-2009, 02:20 AM
  #64  
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Re: T5 FAQ - Everything we know about the T5

The bar from the tailshaft to the rear end is the torque arm, and yes it is the same for 700R4's and T5's. I do not know if its the same for TH200's and Super T10's.
One problem with the torque arms is the direction of the rounded part, also called the "lips". Some torque arms have the lips facing the left side and some face the passenger side. You'll need to pay attention to this when getting the torque arm mount on the tailshaft.
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Old 03-31-2009, 11:15 PM
  #65  
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Re: T5 FAQ - Everything we know about the T5

are any special tools required to rebuild a NWC t5? bevause i read something somewhere that you need some kinday pulling thing to rebuild a t56 so i want to make sure before i buy a rebuild kit...
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Old 04-01-2009, 04:40 PM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by oxrabidus View Post
are any special tools required to rebuild a NWC t5? bevause i read something somewhere that you need some kinday pulling thing to rebuild a t56 so i want to make sure before i buy a rebuild kit...
https://www.thirdgen.org/forums/tran...t-5-build.html

You don't need the endplay tool like the T56, but you do need access to:

Depth-micrometer or good dial caliper
Bearing separator and press
Large snap-ring pliers
Rebuild Manual
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Old 04-02-2009, 07:19 PM
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Re: T5 FAQ - Everything we know about the T5

could i use a v8 first gear and a .63 overdrive gear with my v6 trans? i dont like the short first gear, and would like the better overdrive... and i could get those, but i dont know what snap ring pliers are?
thank you!
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Old 05-03-2009, 09:31 PM
  #68  
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by ChoobinatoR View Post
Guys I need some help. I'm replacing the fluid for the first time on my WC T-5.

I need to know the fluid capacity, because I cannot remove the fill plug, even after soaking it in WD-40. Whoever tightened it on last really did it - I put a breaker bar combined with a fat 2 foot pipe for leverage and it WOULDN'T EVEN BUDGE =[
righty tighty.. heh :P
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Old 05-05-2009, 03:55 PM
  #69  
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Re: T5 FAQ - Everything we know about the T5

Wanted to know if a T-5 tranny from a 2000 firebird v-6 will fit in a '91 305 with a t-5.

My t5 is crap (wont shift to second and fading fast).

i can get this tranny for under 200.00

Will this swap over easy. Can someone point me in the right direction.
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Old 05-05-2009, 04:11 PM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by blk91rs View Post
Wanted to know if a T-5 tranny from a 2000 firebird v-6 will fit in a '91 305 with a t-5.
No, the 4thgen V6 T5s use the Ford bolt pattern.
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Old 05-05-2009, 07:42 PM
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Re: T5 FAQ - Everything we know about the T5

Can anyone verify this ??? and are you talking about the bell housing?

Can i buy or make an adapter (cut and weld my bell housing (engine side) to the new bell housing (tranny side) ???
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Old 05-24-2009, 12:50 AM
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Re: T5 FAQ - Everything we know about the T5

The bolt pattern that is on the trans case where it mounts to the bell housing is different. Also, I learned from this thread that the 4th gen V6 T5's input shaft is a tad longer as well.

Here's a good line up of a bunch on the different bell housings from over the years:
http://www.tacreationsusa.com/bell_housings.htm
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Old 05-24-2009, 01:03 AM
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Re: T5 FAQ - Everything we know about the T5

I have some questions:

1.) Is the bolt pattern on the T5 case the same for all V8 as well as V6 3rd gen T5s? So that, ignoring the spline count difference, could you bolt a V8 T5 into a V6 and vice versa(IE: will a V8 T5 bolt to a V6 bell housing and will a V6 T5 bolt to a V8 bell housing)?

2.) Other than the spline count difference, are the 3rd gen V6 and V8 T5 input shafts the same length? Does anyone have a depth measurement for a stock V8 T5 bellhousing from the engine mounting flange to the transmission mounting flange?

3.) Is the diameter of the part of the input shaft that engauges the pilot bushing the same diameter for a V8 and V6 T5?

Thanks!

Last edited by 430Camaro; 05-24-2009 at 01:17 AM.
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Old 09-03-2009, 10:45 PM
  #74  
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Re: T5 FAQ - Everything we know about the T5

i wanted to know if you could help me with this i ran into this problem i seized my t-5 in my camaro and i bought a used t-5 off of a guy on MIFbody and when i had it put int this pressure plate did not fit i think it was too small but there is not metal tags on it all i have are all the cast number i wanted to know if anyone could tell me what this t-5 came out of i was reading what all they put them in so the guy i got if from said he pulled it off his 85z28 that had a 350 in it and he did not know if the trans was original i don't think it is so here are the cast numbers

top# 13-51-097-901
left# 13-52-069-907
right# 2dl236666
Sticker#wd13-52-027612n_ _4

These are the numbers the shop gave me. Hope you can help me out. Thanks
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Old 09-04-2009, 04:22 AM
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Re: T5 FAQ - Everything we know about the T5

First off -use punctuation so us older folks can understand WTF you're saying.

Second - if there's a 350 AND a T-5 in a Camaro or Firebird, one or the other (maybe both) isn't original.

Third - I can't figure out what you're asking. do you need to know which pressure plate you need? or do you need to know part numbers? what are you asking for?

Last edited by flyitlikustolit; 09-04-2009 at 04:51 AM.
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Old 09-04-2009, 05:59 AM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by spears91rsfbody View Post
i wanted to know if you could help me with this i ran into this problem i seized my t-5 in my camaro and i bought a used t-5 off of a guy on MIFbody and when i had it put int this pressure plate did not fit i think it was too small but there is not metal tags on it all i have are all the cast number i wanted to know if anyone could tell me what this t-5 came out of i was reading what all they put them in so the guy i got if from said he pulled it off his 85z28 that had a 350 in it and he did not know if the trans was original i don't think it is so here are the cast numbers

top# 13-51-097-901
left# 13-52-069-907
right# 2dl236666
Sticker#wd13-52-027612n_ _4

These are the numbers the shop gave me. Hope you can help me out. Thanks
If you look towards the top of this thread on the first page, I posted a list of all the T5 model numbers. According to the list I posted, and looking at the number from the sticker that you posted, it's a 1983, 4 cylinder T5. If that's the case, then the input shaft only has 14 splines on it. All the V8 T5's have a 26 spline input shaft. If that's the issue you have, your only reasonable option would be to get a 3rd gen, V8 T5 so that it'll work with your clutch disc. If you search the boards, somebody posted an oddball, 14 spline clutch disc that can be used so that you can run the 14 spline T5 behind a V8. I think the original application for that oddball disc is for a 4.3L S-10 if I remember right. In all honesty though, the 4 and 6 cylinder T5's really suck behind a V8. The ratios in them are way different from the V8 T5's. In fact, that list I have posted on here also has the gear ratios for each T5. Take a look at the difference in the ratios between the trans you have right now and the ratios for the V8 ones, and you'll see why they're not really suited for running with a V8. I just looked up the ratios for your trans, and it's not as bad as the ones that have a 4.03 1st gear, yours is 3.50, but the V8 ones have a 2.95 1st gear. A 3.50 1st gear is like having a granny gear in a dump truck.

Last edited by Pat Hall; 09-04-2009 at 06:05 AM.
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Old 09-04-2009, 06:28 AM
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Re: T5 FAQ - Everything we know about the T5

Pat - not to hijack, but if he's running (numerically) low gears, like say 2.73s, wouldn't a 3.50 1st gear be ok? I could have my math backwards, which is why I'm asking. the steeper gearing in the smaller-engine T5s was specifically to counteract the tall gears of the other models, I thought.
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Old 09-04-2009, 07:14 AM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by flyitlikustolit View Post
Pat - not to hijack, but if he's running (numerically) low gears, like say 2.73s, wouldn't a 3.50 1st gear be ok? I could have my math backwards, which is why I'm asking. the steeper gearing in the smaller-engine T5s was specifically to counteract the tall gears of the other models, I thought.
Actually, you're completely right on that one. If he indeed has 2.73 gears, then that 3.50 1st gear would be ideal. It'd probably even be ok with 3.08's as well. 3.23 or numerically higher, which most manual trans cars should have by all rights, and it'd be too much. I'm running a TKO with the 3.27 1st gear and 3.42's out back, and man, 1st gear tops out pretty damn quick! The reason they put such a low gear in the 4 and 6 cylinder trannys was to compensate for the lack of torque those motors have compared to a V8. Every 6 cylinder 3rd gen also always has either 3.42 (manual trans) or 3.23 (auto trans) rearend gears too. The old 4 cylinder 3rd gens commonly got 3.73 rear gears.
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Old 09-04-2009, 08:05 AM
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Re: T5 FAQ - Everything we know about the T5

sweet. good to know the desert hasn't TOTALLY fried my brain yet.... looks like if I want the better gears I should check the 4 cyl and 6 cyl cars with manuals, eh?
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Old 09-04-2009, 09:45 AM
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Re: T5 FAQ - Everything we know about the T5

The transmissions with the 4.03 and 3.50 first gear are going to be much weaker than the 2.95 transmission. Also, the 4 cylinder and 60 degree V6 transmissions have a longer input shaft than the V8 transmissions, so they won't mate to the bellhousing before the input shaft bottoms out on the crankshaft. There was a 14 spline clutch disc used in the 4.3 Astro van that will work with this transmission, but you must do some modifitcations to the input shaft and front bearing retainer to make it work.
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Old 09-04-2009, 01:23 PM
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Re: T5 FAQ - Everything we know about the T5

Since I'm actually running the V6 T5 behind a 350, I'll add my .

The clutch disc that Pat Hall and Big Gear Head are referring to is from an 82 GMC S15 with a 2.8L V6. Part # at Autozone is CP4201, it has the 14 splines and is listed at 9 11/16" diameter.

Centerforce used to make a 10.5" 14 spline clutch disc for S10 V8 conversions but Summit apparently doesn't carry it anymore.

You could also try a disc from an Chevy Astro Van with the 4.3L V6, but it's an 11" clutch so I'm not sure it will fit inside the pressure plate.

As for transmission modifications, you need to cut about 1/4" off the front of the input shaft. I also used my angle grinder to chamfer the leading edge of the input shaft like it was originally. That is the only change I had to make to the transmission to get it to bolt up.

First gear is very short as was mentioned, I find myself shifting almost immediately into 2nd with 3.42 rear gears.
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Old 09-04-2009, 09:20 PM
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Re: T5 FAQ - Everything we know about the T5

Originally Posted by flyitlikustolit View Post
sweet. good to know the desert hasn't TOTALLY fried my brain yet.... looks like if I want the better gears I should check the 4 cyl and 6 cyl cars with manuals, eh?
If you're worried about the desert frying your brain, I'm assuming you don't live in FL anymore? Where I'm at, I'm so sick of the heat I can't wait until Oct. so I can actually go out and wrench in the garage comfortably! But yeah, the 6 cylinder cars are a sure-fire bet for finding 3 series rears. Good call above on shortening the input shaft. I forgot all about that. There was a guy who posted up some time ago, with pictures and everything on how to go about shortening it. He also listed the funky clutch disc that's needed.
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Old 09-05-2009, 07:20 AM
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Re: T5 FAQ - Everything we know about the T5

nope - FL is still home, but I'm in Iraq ATM. 5 more months and I'll be finishing my engine. I did the tranny swap (the hard parts anyway) before I left, because I had the time, tools, lift, an parts. it wasn't very difficult at all, and I can't wait to try it behind the 383. I read through this thread a lot to make sure I had everything needed and when I didn't, I found what I was missing.

as for the funky clutch and shortening the shaft - bigger cojones than meself! I'm not so sure I would've attempted that, meself!!! kudos for making it work. the chamfer was probably a good idea, too.
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Old 09-05-2009, 10:34 AM
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Re: T5 FAQ - Everything we know about the T5

I did a LOT of reading on here and researching part numbers/clutch disc sizes before I finally settled on my setup. Unfortunately, I didn't know about the input shaft length until I was trying to bolt the transmission/bellhousing to the back of the engine. I figured it was hung up on the pilot bearing and kept tightening the bolts until I cracked the bellhousing at one of the alignment pin holes.

The cutting/chamfering was not difficult, it took me about 5 minutes to do with my angle grinder. The hardest part was figuring out how much to take off. I used a cutoff wheel about 1/16" thick and cut it right behind the original chamfer so that I shortened it by the length of the chamfer + the thickness of the cutoff disc. Then I chamfered that edge back about 1/8" at roughly a 45* angle.

The only issue I have noticed is that the clutch will slip a bit if I stomp the gas. I haven't done it that much seeing as the engine was just rebuilt and I'm still breaking it in and trying to tune the carb. I'm not running a hugely powerful engine though. Power estimates in Desktop Dyno are around 300HP and 385 torque.
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Old 10-08-2009, 03:47 PM
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Re: T5 FAQ - Everything we know about the T5

Has anyone put a MGW shifter on their T5 in a camaro? http://www.mgwltd.com/mustang_shifter.shtml
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Old 10-08-2009, 06:19 PM
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Transmission: T5
Axle/Gears: 3.73
Re: T5 FAQ - Everything we know about the T5

I dont see anything on their website about camaros...
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Old 10-09-2009, 12:57 AM
  #87  
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Car: '89 IROC-Z
Engine: 305 TPI
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Re: T5 FAQ - Everything we know about the T5

Well, I have heard a lot of good things about that shifter and have ordered one. The people from MGW said it should bolt up to any T5, the just were not sure how the shifter **** would line up in the cabin. I should have it in a couple days. Will post progress if any.
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Old 11-09-2009, 04:55 PM
  #88  
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Re: T5 FAQ - Everything we know about the T5

I always find new stories of the Ford guys using the T5 from the 2.3L Mustangs in their 5.0 cars because of supply and demand, and most of them hold up to the torque, just not the powershifting and clutch dumps from dead stops. I got in a bind with a 305, so I tried the T5 from an '85 Camaro 2.8L. the 3.50:1 first wasn't too insane, and the 0.78:1 fifth was better than no OD at all, and it held up for nearly 3 years. Also, your gear ratio info on the Ford V8 versions is missing these details: Sometime around '83, The 5.0L Mustangs switched from the 3+1 manual trans to the T5 with 2.95/1.94/1.34/1.00/0.73 ratios, the same ratios as the mid-'83 through late '84 305 F-cars. The '85 5.0L Mustangs all had the above T5-V, And that continued through '88. The '89 Mustang 5.0 got the World Class improvements, and a new second gear ratio of 1.99:1 and a new third gear ratio of 1.333:1. All '85-'93 5.0L Mustangs with T5 had a 3.35:1 first and a 0.68:1 fifth, NO exceptions.
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Old 11-11-2009, 10:22 PM
  #89  
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Car: 89 Pontiac Firebird
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Re: T5 FAQ - Everything we know about the T5

Ok im new to this thing and was wondering if you could answer a question for me.
Im getting an 88' firebird with a 2.8 V6 automatic. I was wondering what kind of transmissions came with those?
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Old 11-11-2009, 10:24 PM
  #90  
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Re: T5 FAQ - Everything we know about the T5

1

Last edited by Dewbro91; 11-11-2009 at 10:28 PM. Reason: duplicate
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Old 11-16-2009, 08:44 PM
  #91  
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Posts: 78
Car: 85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.73
Re: T5 FAQ - Everything we know about the T5

is it possible to swap a 0.73 5th gear from a nwc into a wc with a 0.63 5th?
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Old 11-17-2009, 08:51 AM
  #92  
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Car: 1992 Camaro RS
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Axle/Gears: 4thgen disc rear w/ 3.73 Posi
Re: T5 FAQ - Everything we know about the T5

Originally Posted by Hubes View Post
is it possible to swap a 0.73 5th gear from a nwc into a wc with a 0.63 5th?
Yes, as long as you swap both the 5th gear and the matching gear on the output shaft. Not sure why you would want to though?
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Old 11-17-2009, 08:59 PM
  #93  
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Car: 85 Z28
Engine: 350
Transmission: T5
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Re: T5 FAQ - Everything we know about the T5

I have a 0.73 5th now, and I feel like 0.63 would be too big of a drop
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Old 12-18-2009, 06:09 PM
  #94  
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Location: Ennis,TX
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Car: 85 Z28
Engine: 350 TPI
Transmission: WC T-5
Axle/Gears: 3.42 drum
Re: T5 FAQ - Everything we know about the T5

OK, After loosing third and forth gear on my WC T5 ,and unable to find a sutable replacement for less than $600. I ordered a master rebuild kit and did it myself on my kitchen table. Took alot of photos for refernce and was very happy with the outcome and the price. Finall verdict was the third/fourth syncronizer keys had busted and tore up the syncros. Shifts like new now. I even powdercoated the trans case in extreme crome, the bellhousing black, and the crossmember red while I had it apart(looks awsome!!) The trans had 180,00 hard miles when it broke and now is ready for. For the record I have never rebuilt a manual trans before but am very mechanicly inclined and very determined. Good luck to all and happy shifting
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Old 12-20-2009, 01:15 PM
  #95  
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Car: 1987 Monte Carlo SS
Engine: Vortec headed 350
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Re: T5 FAQ - Everything we know about the T5

I only followed the info in this thread and didn't follow all the links posted, but....
I feel this is something that may be helpful to answer when speaking of the T5 trans and those who may have a pile of parts.
Can a NWC housing(s) be saved for spares(for whatever reason ) to be used on a WC version if needed? Are there any differences to the case/tailhousings themselves from the NWC to the WC other than the internals?
Thanks.

EDIT: There are definately differences in the machining of cases/tailhousings so the case cannot be swapped from a NWC to a WC but the tailhousing from a NWC will work on a WC as long as the NWC oiling funnel is also used when swapping onto a WC unit.

Last edited by 87SSTPI; 02-28-2010 at 08:57 PM.
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Old 02-28-2010, 08:20 PM
  #96  
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Location: Woonsocket, RI
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Car: 88 Camaro Silver and Black
Engine: 350 4bbl.
Transmission: World Class T-5
Axle/Gears: 3.42 with eaton posi unit
Re: T5 FAQ - Everything we know about the T5

f-body v8 input shafts are 26 spline on the input and 27 on the output shaft
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Old 03-14-2010, 01:30 PM
  #97  
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Re: T5 FAQ - Everything we know about the T5

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Old 03-15-2010, 09:40 PM
  #98  
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Re: T5 FAQ - Everything we know about the T5

Will a B and M shifter base from a t5 out of a mustang work on my 1984 t5 in my camaro?

The bolt pattern looks the same. I have a few custom short handle shifters that I can head and bend.
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Old 03-31-2010, 05:51 PM
  #99  
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Location: ft.wayne indiana
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Car: 84 camaro
Engine: 72 chevy 406 sbc
Transmission: 700r4
Axle/Gears: 3.42 eaton posi
Re: T5 FAQ - Everything we know about the T5

ok i just started reading this and according to gm the t5 is only rated for 260 trq and the 88-91 is rated for 300 torque,and thats why they didnt offer this trans with the 350 motors. so what will this really handle? i got a 406 just guessing on hp to be bout 400 or so i got 3.42 gears and eaton posi. will this trans hold up to this power? i have a t5 from a 86 z28 with a 305 and i wanted to swap trans into my 84 sport coup with the 406 thanks for any replies
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Old 04-02-2010, 08:17 PM
  #100  
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Re: T5 FAQ - Everything we know about the T5

Honesty, you'd be pushing your luck using the T5. I'll give you the usual response to this question. Yeah it'll hold up as long as you drive it sensibly. They die a very quick death if they're powershifted or subjected to high rpm clutch dumps taking off when behind a healthy SBC, and a 406 definitely has some stout torque. I ended up buying a Tremec TKO 5 speed for mine so I can abuse it without having to worry about grenading it! Most guys either upgrade to the TKO or the T-56 6 speed.
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