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

4th gen 5 speed

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Old Dec 18, 2006 | 07:15 PM
  #1  
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From: South Georgia
4th gen 5 speed

will a 5 speed out of a 4th gen work in a 3rd gen?
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Old Dec 19, 2006 | 01:23 PM
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If it's a 5 speed out of a 4th gen, I would assume it's a V6 trans. - It can be made to work, but the bolt pattern and the input shaft are different.

Being a 4th gen unit, it is atleast a WC (world class) which would mean it's power capabilities are equal to the V8 units, but the ratios are a bit different.
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Old Dec 19, 2006 | 01:32 PM
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From: AL,USA
Car: 1990 Formula
Engine: 95 LT1
Transmission: T56
Axle/Gears: Weak 7.5 with 4.10s
How are the bolt patterns different? When I bought my Formula it had a 4th gen V6 trans in it and it fit fine.
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Old Dec 20, 2006 | 01:27 PM
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- Of the 3 95+ WC v6 t5's I used and abused, they all had the bolts very close to the sides of the case. The standard 3rd gen trans has the bolts out on the common 4-bolt "star" type configuration. - Maybe the 3rd gen 6's had the closer holes also, I've never f'ed with a v6 car.
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Old Dec 20, 2006 | 01:36 PM
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Car: 1990 Formula
Engine: 95 LT1
Transmission: T56
Axle/Gears: Weak 7.5 with 4.10s
I have never messed with 3rd gen V6 T5s either. The trans I pulled out of my 90(4th gen V6) and the one I pulled from my 91(original behind a 305 TPI) were identical. Maybe since my 90 had a 95 model T5 it had the older V8 style case.
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