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Will a T-5 from v6 4th gen work with an L98?

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Old Nov 23, 2003 | 04:37 PM
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From: Buffalo, NY
Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
Will a T-5 from v6 4th gen work with an L98?

This is a 2-part question. I found a 93 camaro v6 with a 5 speed tranny at a junk yard. Right now I have an '88 Formula 350 with it's original 700R4 tranny and want to go to a manual. Will the 93 T-5 bolt up? if it isn't a direct bolt-in, what is required? The second part of the question is WILL IT HOLD UP? The 350 has edelbrock headers and an aftermarket exhaust on it so i'm guessing it's somewhere around 250 HP. If i do any more upgrades in the future, i don't plan on going far past 300 HP. I know the v6 camaros came with around 200 HP and figure if it can hold up it'd be cheaper than buying a T-56. Any info from people that are knowlegable on the subject would pre appreciated. thanks
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Old Dec 1, 2003 | 06:59 PM
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From: Buffalo, NY
Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
doesn't anyone have some info on this??
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Old Dec 1, 2003 | 07:24 PM
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Trans

It will not work....Wrong bolt pattern, only fits a V-6 bellhousing.
And alot of other things no need to go into.
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Old Dec 2, 2003 | 10:20 AM
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From: MN
Car: 1989 trans am
Engine: 357sbc
Transmission: 700r4
All i kno for sure is that the bellhousing is different, dont know about the other things he is talking about, but the T-5 is rated at like 265-275 and i think 300hp would be ok
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Old Dec 2, 2003 | 10:55 AM
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From: GO PACK GO
Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
Re: Trans

Originally posted by Dyno Don
It will not work....Wrong bolt pattern, only fits a V-6 bellhousing.
And alot of other things no need to go into.
Ditto
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Old Dec 2, 2003 | 05:59 PM
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From: Buffalo, NY
Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
thanks for the info. I thought the bellhousing would be an issue but wanted to see if there was an easy way around it.
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Old Dec 2, 2003 | 09:04 PM
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From: MN
Car: 1989 trans am
Engine: 357sbc
Transmission: 700r4
not an EASY way
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Old Jan 22, 2004 | 09:33 AM
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From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
Hey guys, i have a t5 from a 88 that i swapped into my l98 that just died. I lost 1,3,5 gears. I already have the correct bellhousing and everything installed. So I just picked up a v6 4th gen 5 speed from a friend yesterday, it looks the same, can I bolt it up to the existing bellhousing, will it work? Input/output splines the same? If noone knows the answer that is fine, I just can't pull the old tranny out until this weekend, so I thought I would ask here.

-Steven
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Old Jan 22, 2004 | 09:37 AM
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Engine: 377 LSX
Transmission: Magnum T56
Originally posted by StevenK
Hey guys, i have a t5 from a 88 that i swapped into my l98 that just died. I lost 1,3,5 gears. I already have the correct bellhousing and everything installed. So I just picked up a v6 4th gen 5 speed from a friend yesterday, it looks the same, can I bolt it up to the existing bellhousing, will it work? Input/output splines the same? If noone knows the answer that is fine, I just can't pull the old tranny out until this weekend, so I thought I would ask here.

-Steven
If the T5 from the 88 is a V8 car than yes, everything will bolt up right. It is when you try to use V6 trannys where things don't work.
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Old Jan 22, 2004 | 11:29 PM
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From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
Originally posted by ShiftyCapone
If the T5 from the 88 is a V8 car than yes, everything will bolt up right. It is when you try to use V6 trannys where things don't work.
Okay, let me reorginize the post.

My 91Z28 l98 came with a 700R4.
I removed the 700r4 and put in a 88 wct-5.
The 88 lost 1-3-5 gears.
I now have in my garage a 4th gen v-6 t-5.

The question is, can I pull the 88 off and bolt up the 4th gen to the 88 bellhousing?
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Old Jan 23, 2004 | 12:27 AM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
You can use a V6 trans in a 3rd gen V8, use the normal V8 bellhousing, flywheel, pressure plate, the disc you have two choices, 1. use a 84 V6 9 11/16 disc or 2 get a custom disc made for a 1" 14 spline shaft with a 10.4" diameter.
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Old Jan 23, 2004 | 08:29 PM
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From: California
Car: 1989 RS Camaro
Engine: LT1
Transmission: T56
Number one are u sure its a T5, b/c if the camaro was a 93 it should've had a T56. If it is a T5 it wont handle a TPI 350. The torque limit on the top rated T5 is 300 ft lbs of torque. Thats why they only put a TPI 305 with a T5 and not a TPI 350. As well the 93 camaros did not have 200 hp, the 93-95 3.4L V6 had 160 HP and 200 ft lbs of torque. If it is a T5 it'll break very quickly with the torque of your 350, unless u baby it. I think the only T5 that would REALLY hold up to a modified 350 would be a T5 from a newer mustang.
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Old Jan 24, 2004 | 12:02 PM
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From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
to answer my question, 4th gen 5 speeds will not work, the input spline is long, and it wont bolt up to a 3rd gen bellhousing, different bolt pattern.
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Old Jan 24, 2004 | 06:14 PM
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v6

which v6 is he talking about the 60 degree 3.4 or the 90degree 3.8 which is rated at 200 hp
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Old Jan 24, 2004 | 06:23 PM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Have you measured a V6 T5 from a 4th gen ? For some reason i doubt its any different than one from a V6 thirdgen, and they work fine, i highly doubt gm changed from their standard trans to bellhousing flange style for the T5 on them, i've had one out and it looked just the same.
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Old Jan 24, 2004 | 10:23 PM
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
They are the same, I got my t-5 and my brother in laws t-5 from his 95 Camaro right next to each other in the garage, thier identical.
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Old Jan 24, 2004 | 11:56 PM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Originally posted by pasky
They are the same, I got my t-5 and my brother in laws t-5 from his 95 Camaro right next to each other in the garage, thier identical.
If what he ^ said is true, you wont have any problem bolting one into a 3rd gen with the stuff i listed.

If anyone doubts this, put your money where your mouth is, come to florida and we'll pull the V6 T5 out of my daily driver 92 Z28.
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Old Jan 27, 2004 | 08:17 PM
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From: under the hood
Car: 92 Z28 heritage
Engine: 5.0 TPI
Transmission: T-5
The 4th gen T5's are esentially the same T5 that Ford uses in the SN95 Mustang V6's. The 3rd gen T5's are turned 18 counterclockwise to locate the shifter closer to the driver. The 4th gen T5's are not that way, they are mounted straight up and down.

It won't work. Don't try. Just get the right trans!
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Old Jan 28, 2004 | 07:22 AM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Originally posted by fisherbody86
The 4th gen T5's are esentially the same T5 that Ford uses in the SN95 Mustang V6's. The 3rd gen T5's are turned 18 counterclockwise to locate the shifter closer to the driver. The 4th gen T5's are not that way, they are mounted straight up and down.

It won't work. Don't try. Just get the right trans!
Oddly enough, i gotta doubt you, early thirdgens were the same way, i believe 83 and 84, maybe 83 only, but it was the bellhousing that clocked the trans not the actual case.
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Old Jan 28, 2004 | 01:20 PM
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From: Grand Island, NY
Car: 1990 Formula
Engine: 305 TPI
Transmission: WC T5
Originally posted by fisherbody86
The 4th gen T5's are esentially the same T5 that Ford uses in the SN95 Mustang V6's. The 3rd gen T5's are turned 18 counterclockwise to locate the shifter closer to the driver. The 4th gen T5's are not that way, they are mounted straight up and down.

It won't work. Don't try. Just get the right trans!
From what I have read Fisherbody86 is correct!!! i will try to find the link to the info and post it.

Last edited by novass; Jan 28, 2004 at 01:23 PM.
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Old Jan 28, 2004 | 01:22 PM
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From: Grand Island, NY
Car: 1990 Formula
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Originally posted by Z28*****
Oddly enough, i gotta doubt you, early thirdgens were the same way, i believe 83 and 84, maybe 83 only, but it was the bellhousing that clocked the trans not the actual case.
The transmission mounting crossmember on the tailhousing is cocked to compensate for the cocked belhousing.
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Old Jan 28, 2004 | 01:30 PM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Originally posted by novass
The transmission mounting crossmember on the tailhousing is cocked to compensate for the cocked belhousing.
Ok so you'd just need a tail housing laying around from a V6 thirdgen, or V8 thirdgen, not like there arent millions of those laying around the US, better to have a lower mile 4th gen box and change the housing than run a higher mile 3rd gen v6 box, IMO.
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Old Jan 28, 2004 | 05:37 PM
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Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
wow. i'm glad to see that i got all of these replies, even if they do contradict eachother at every opportunity. I've decided to stay with my 700R4 for now which works perfectly fine. I want to make sure i have a tranny that can handle whatever power level i decide to attain, so i'll make my tranny swap to a manual whenever I do performance upgrades to the engine itself. even though i want the fun of driving a manual now, it makes more sense to upgrade the motor and tranny at the same time.
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