T5 swap.
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Joined: Sep 2014
Posts: 749
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From: Los Angeles
Car: 92 Z28 Clone
Engine: Vortec 350
Transmission: T-56
Axle/Gears: 3.23 Torsen
T5 swap.
Want to t5 swap my 3.1 auto. Looking at buying this t5 v8 from a 87 Iroc which would be a Non WC. I know its weaker but dude claims it' was working great. Being the v8 model how will the ratios match up with my rear (3.23) and my powerful 3.1. Would it be a good driver? Is there a clutch that will fit the v8 splines but for v6?
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Joined: Feb 2019
Posts: 786
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From: SW Missouri
Car: 1989 Trans Am
Engine: sp357
Transmission: TKX
Re: T5 swap.
Want to t5 swap my 3.1 auto. Looking at buying this t5 v8 from a 87 Iroc which would be a Non WC. I know its weaker but dude claims it' was working great. Being the v8 model how will the ratios match up with my rear (3.23) and my powerful 3.1. Would it be a good driver? Is there a clutch that will fit the v8 splines but for v6?
Probably be dog slow and lots of slipping of the clutch to take off. The V6 T5 had something like a 4.03 first gear, whereas the V8 T5 has a 2.95 first.
Thread Starter
Senior Member




Joined: Sep 2014
Posts: 749
Likes: 39
From: Los Angeles
Car: 92 Z28 Clone
Engine: Vortec 350
Transmission: T-56
Axle/Gears: 3.23 Torsen
Joined: Feb 2003
Posts: 2,498
Likes: 20
From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: T5 swap.
I also believe the input shaft is different (size / less teeth) on the V8 T5 vs V6 T5....
So you would need to get one from a V6 car...
Anyone know for sure?
So you would need to get one from a V6 car...
Anyone know for sure?
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