A T-5 with 3.42's is like a T-56 with 3.73's.
Thread Starter
Senior Member
Joined: Sep 2003
Posts: 784
Likes: 1
From: New Mexico
Car: 1991 Camaro Z28 5.7 G92
Engine: L98 Tuned Port Injection
Transmission: TH700R4
Axle/Gears: 3.23 Posi G80
A T-5 with 3.42's is like a T-56 with 3.73's.
I did the final drive calulations for a T-5 and T-56 (rear gear x trans gear) and they are virtually identical when the T-56 is a stage higher. What I mean by that is, 2.95 first gear in the T-5 x 3.42 is 10.08, and the T-56's first gear 2.68 x 3.73 is also 10.something. It seems like you need a stage higher with the T-56 like this:
T-56 with a 3.42 rear= T-5 withy a 3.08
Figures that's why the T-56 come stock with 3.42
T-56 with a 3.73 rear= T-5 with a 3.42 rear
T-56 with a 4.11 rear= T-5 with a 3.73
...and so on.
So if 4.11 are about the limit for performance on the T-56 then 3.73 would be the limit on the T-5.
I am only talking about the first four gears on both.
T-56 with a 3.42 rear= T-5 withy a 3.08
Figures that's why the T-56 come stock with 3.42
T-56 with a 3.73 rear= T-5 with a 3.42 rear
T-56 with a 4.11 rear= T-5 with a 3.73
...and so on.
So if 4.11 are about the limit for performance on the T-56 then 3.73 would be the limit on the T-5.
I am only talking about the first four gears on both.
Thread
Thread Starter
Forum
Replies
Last Post
tonys91rs
Engine/Drivetrain/Suspension Parts for Sale
3
Oct 10, 2015 03:31 PM





