Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Blazer gear ratio change for Chevy 292
View Single Post
  #7 (permalink)  
Old 06-29-2012, 07:29 AM
big gear head's Avatar
big gear head big gear head is online now
High Performance Rear Ends
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 3,039
Wiki Edits: 0

Thanks: 52
Thanked 1,253 Times in 975 Posts
The 8.5 corporate rear end uses the same 3 series differential for all gears from 2.73 to 5.13. The 2.56 to 2.14 gears use a 2 series differential. It would be much easier for you to find a complete rear end with the gears that you want instead of trying to change the gears in the one that you have. You can not simply take a set of gears out of one rear end and bolt them into another without setting the pinion depth, bearing preload and backlash.
Reply With Quote