rebuilding a 82 z28 i swaped the old 305 with a mild preformce 350 fallowed by a 700r4 with a stage 2 shift kit and now on to the rear end now my rear end is a 3:73 posi. now i was wondering what gears should i put in the rear end(or keep the 3:73's) im building the car to cruise around the city and some 1/4 drags here and there but mostly high driven. so any info will help

 

If you do highway driving I would keep the 3.73s. Its a good blend of accelleration and with an overdrive trans the RPM isn't too high on the expressway. Any shorter of a gear and your going to be maintaining a lotta rpm at highway speeds.

 

what rpm's will you see with the 3.73's at 70 mph with the 700r4 ?

 

i would keep the 3.73

 

i don't have a tack in my car but if your doing 70 in OD and the stall converter is locked in its going to be low.