Transmissions and Drivetrain Need help with your trans? Problems with your axle?

T5 part interchangeability

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Old Nov 26, 2003 | 09:03 PM
  #1  
eddie jr's Avatar
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T5 part interchangeability

I need to do a rebuild on the 'ol T5 soon and was wondering:


1. Is the V6 T5 the same as a non WC T5 for a V8 (except for the input shaft of course)??
1. Are WC and non-WC parts interchangeable?? Can you put a WC rebuild kit in a non WC??? Mine is an 85 (before WC) but would WC parts fit in???

any help would be greatly appreciated.
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Old Nov 26, 2003 | 09:07 PM
  #2  
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
1. No. The coutnergear is different also.

2. No. The bearings are completely different.
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Old Nov 27, 2003 | 05:55 AM
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thank for the reply. yeah, i've heard the bearings and synchro's are different. Are you saying though that whatever the bearings and whatnot mount onto or in are totally different too so that that you would basically have to replace all that stuff too???

The only option aside from a whoe new tranny is to get the V6 rebuild kit??

thanks.
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Old Nov 27, 2003 | 08:50 AM
  #4  
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The rebuild kits are the same for a 6-cyl or a V8 trans. They use the same bearings, etc. The difference is between the 1st design and 2nd design trans; the kits for 86-back are completely different from 87-up.

The 6-cyl version of the trans has different gears from the V8 one. The 6-cyl clutch gear has 14 splines on a 1" shaft; the V8 one has 26 splines on a 1-1/8" shaft. The number of teeth on the clutch gear is less in the 6-cyl than the V8, and the gear diameter is smaller; and the number of teeth on the drive gear on the countergear is greater ont he 6-cyl, and its diameter is also greater. This is because the 6-cyl trans has real wide spacing between gear ratios, so that the no-power 6-cyl can actually get the 3500 lb car moving from a dead stop in time to avoid getting run over by oncoming traffic or otherwise creating a traffic blockage, while at the same time being able to run at a low RPM on the highway, for engine longevity and gas mileage.

I don't know what you mean about this "have to replace" business. What's wrong with the transmission in the first place? What kind of car do you have? What are you really trying to do?
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Old Nov 28, 2003 | 04:58 PM
  #5  
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it is an 85 FB 2.8 5sp,

the story is that it looks like it needs a rebuild soon. I did the clutch in the summer and all looked good for a few weeks but the clashing / grinding when shifting into 2nd came back (before the clutch job I got it the odd time in other gears too but now just 2nd). [new clutch, p-plate, TOB, flywheel machined, greased up, fluid changed]. Right now it is inconsistent and for now is only an issue when cold. Once up to operating temperature the synchro doesn't seem to grind. Just recently when cruising around town I also heard a weird noise from the tranny when in fourth. If you rested your hand on the stick once in fourth there was a weird noise. It is temporarily gone now. Some shifts (eg. in to 2nd) just seem like maybe they are not as clean as they should be moving the stick into position......that one is hard for me to know for sure since I don't drive a lot of standards to compare to.

All in all, to me it seems like the synchros are starting to go as well as other potential issues as described.

As far as the kits go, I was just curious. I just thought that if I had to upgrade, it wouldn't hurt to make it a bit stronger if the kits were interchangeable.

what do you think?
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Old Nov 28, 2003 | 07:18 PM
  #6  
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
When you replaced the pilot bushing as part of your clutch job, did you put a bushing back in, or a bearing?
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Old Nov 29, 2003 | 06:30 AM
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From: PA
bushing.
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Old Nov 29, 2003 | 12:10 PM
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Synchros don't just "go" all at once. Each gear has its own. If one gear had trouble shifting, specifically if it crashed going in, then maybe it could be caused by a worn synchronizer; but not all gears at the same time.

Shifting problems in all gears are usually caused by something to do with the clutch. That would include the pilot bushing. Before you spend a bunch of money on something you almost certainly don't need, take a real good look at your clutch, because that's probably what's really causing the problem. And just because you replaced the clutch, the disc, the TOB, etc. doesn't neccessarily mean that it's all good; look critically at it, make sure the pilot bushing fits the pilot on the clutch gear tightly, etc.
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Old Dec 1, 2003 | 04:40 PM
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maybe there was some misunderstanding. THe clashing in multiple gears was before the clutch job. The only actual clashing since the clutch job has been in 2nd (and didn't show up until about 3 weeks after the clutch job).

Before installing the pilot bushing I had slid it over the input shaft of the tranny and it was a nice snug fit.

I don't understand how it could be anything clutch related now since the splines and TOB and TOB sleeve etc were greased up as well. The fork fit tighly in the groove and ball stud greased. What clutch issue could potentially cause these problems?? Any thoughts? I am confused.
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Old Dec 6, 2003 | 10:24 AM
  #10  
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Anyone have any ideas. Still cunfused as to the potential of a clutch issue causing it still. Any thoughts?
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Old Dec 9, 2003 | 09:26 PM
  #11  
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still confused, can anyone help out here? please?
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