need drivetrain suggestions on 84 chevy one ton

1984 CHEVROLET TRUCK
Avatar
TAZ3862
  • MEMBER
  • 2 POSTS
have cab and chassis, would like to run a 350 with a 5 speed. would like suggestions on gear ratio on tranny and rearend. will b pulling 30' 5th wheel sporadically. want to run 70mph and get best mpg possible. will be pulling in hills. any info will be greatly appreciated. motor will b mostly stock.
Jul 27, 2012 at 10:21 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
4 11 would be good gears to run in the differential. the trans should be an overdrive unit.

are you going to be using a 4 wheel drive unit??

Roy
Jul 27, 2012 at 10:46 AM
Avatar
TAZ3862
  • MEMBER
  • 2 POSTS
yes,2wd
Jul 30, 2012 at 3:36 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.