The reason I ask is I have a 97 camaro 6sp (3.42s)and in 5th gear it turns 2500 at 70mph. I thought that the 5th gears are the same between the T56 and T5? When I do the math it says that it should be about 2300. What do you guys get? My wifes 87 T/A has 3.08s 5sp and I want to go to 3.42s but the car sees lots of highway time and I'd rather not be cranking 2500Rs all the time!!!

 

I have 3.73's and i see 3000@65 mph

 

I just put 3:70 gears in my car last week and while running at 70mph , I see 2200 rpm's. This is behind a 5 speed.

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1991 Camaro RS/Z28,polished TPI, 355ci. Sportsman 11 heads, LT-4 Hot cam,Pete Jackson gear drive, on,and on, and on... 13.4 @ 105.98 with a 2:77 rear, no traction, no tuning, no practice. Car is pictured in Chevy High Performance magazine, June 2000 issue.
http://www.geocities.com/jasonsz28us/INDEX.htm


1997 GMC Yukon, 4 wheel drive, leather, loaded, Gibson exhaust, K&N intake, Boston pro series speakers..... That's it so far.

1969 Camaro,12 point cage, total project right now, I am planning an LS1 - T56 - and a Vette independent rear. Pro Touring crowd, look out! 8^)