Differential Cushion
Thread Starter
Racer
Joined: Feb 2010
Posts: 494
Likes: 0
From: Leominster MA
Differential Cushion
I'm about to change my rear differential cushion mount and would like a few more pointers and maybe how to/pics. I searched some threads but they get confusing. Some say drop the driveshaft some dont. Whats the deal with this thing....someone...??? please...
Melting Slicks
Joined: Dec 2009
Posts: 3,229
Likes: 656
From: Thunder Bay
I've never done this without removing the driveshaft, and I can't guarantee it can't be done that way, but I don't think you could get the mount bolt out with the driveshaft in. Its only four bolts to take the driveshaft out, anyway.
Melting Slicks
Joined: Dec 2009
Posts: 3,229
Likes: 656
From: Thunder Bay
Whoever told you that doesn't know anything about these cars. First, the differential is not going to move because you change the pinion cushion. Even if it did, it would have to move a LONG way before you wouldn't be able to connect the driveshaft. There are two universal joints and a slip yoke on that shaft.
Thread Starter
Racer
Joined: Feb 2010
Posts: 494
Likes: 0
From: Leominster MA
Read it on here somewhere. I dont care if i take the driveshaft out, probably needs new joints anyway. Just dont want any " oh no " after.
Speaking of driveshaft u joints, does the sockets and vise method work? Im probably going to get to these in a little while.
Speaking of driveshaft u joints, does the sockets and vise method work? Im probably going to get to these in a little while.
Team Owner
Joined: Mar 2002
Posts: 24,160
Likes: 78
Whoever told you that doesn't know anything about these cars. First, the differential is not going to move because you change the pinion cushion. Even if it did, it would have to move a LONG way before you wouldn't be able to connect the driveshaft. There are two universal joints and a slip yoke on that shaft.
Melting Slicks
Joined: Apr 2008
Posts: 2,623
Likes: 242
From: Russell Ontario
St. Jude Donor '09
On some cars you don't need to remove the drive shaft ,I've done a few and on the 80 you can do it easily without the removal of the shaft , you will know when you pull the bolt out , sometime if you rotate the shaft you can replace it! Ron
Burning Brakes
Joined: Aug 2006
Posts: 1,058
Likes: 27
From: Eastern North Carolina
I just finished doing this on my 81. I can not see anyway possible to do it without at least removing the drive shaft from the Diff and sliding it back out of the way. The hardest part for me was getting the new bushings lined up correctly before tightening the bolt. Not much room in there to see or use your hands. Good Luck 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
