Originally Posted by VADER SS L99
Only do the 3.91's if you are cammed or have a triple disk aftermarket converter. Otherwise do like others said and get the 3.70's. I dont consider wheel spin from 3.91 gears to be the biggest issue as you could always use bigger and stickier tires. Its the fact that it forces a shift into 5th too soon if you dont have a cam with a higher redline or triple disk converter that can be locked up at WOT.
thank you, with 3.91 can hurt top speed ... better off for 3.70!!