3.42 - questions
Thread Starter
Racer
Joined: Sep 2005
Posts: 298
Likes: 0
From: Mount Dora Florida
3.42 - questions
What is one worth with 70k on it?
Is there a BIG performance gain from 2.73's?
How hard is it to swap?
Will it make a big difference to gas mileage?
Just doing some research before I tackle this project.
Thanks,
Mike.
Is there a BIG performance gain from 2.73's?
How hard is it to swap?
Will it make a big difference to gas mileage?
Just doing some research before I tackle this project.
Thanks,
Mike.
Race Director
Joined: Mar 2007
Posts: 18,308
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
I'd want to know the history before I bought a used gearset, but that's because I've been burned before.
For one in good condition with 70k, I'd pay around $350.
Is there a BIG performance gain? There is a great SOTP gain, but at the track you should see consistant .1-.2 et gains. Add a high stall while your at it and that jumps up to .5-.8 gain.
You can check out a lot of webpages where users have done this mod.
Do a search for Cajundude and Mike Mercury. They both have writeups on the swap. It is possible to do on jackstands in your garage, but you have to know what your doing and take your time.
You will need a computer reprogram to update the shift points.
It will hurt gas milage, all depends on driving style. Highway driving milage will be affecteted the most.
For one in good condition with 70k, I'd pay around $350.
Is there a BIG performance gain? There is a great SOTP gain, but at the track you should see consistant .1-.2 et gains. Add a high stall while your at it and that jumps up to .5-.8 gain.
You can check out a lot of webpages where users have done this mod.
Do a search for Cajundude and Mike Mercury. They both have writeups on the swap. It is possible to do on jackstands in your garage, but you have to know what your doing and take your time.
You will need a computer reprogram to update the shift points.
It will hurt gas milage, all depends on driving style. Highway driving milage will be affecteted the most.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
I put a set of new 3:42s in my vert and went from 31 to 27 on the road. You should be able to find a diff with a lot less miles for $500 or under. Z06 guys pull them out for 3:90s or 4:10s. Check parts for sale here on the forum. As posted above, get a tune to set shift points, tranny pressure and shift time. 
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
