How to test diff clutches
Tech Contributor
Joined: Aug 1999
Posts: 15,154
Likes: 3,959
From: Connecticut, USA
That is the procedure but it the unit is a used one from 71-79 then the clutches are not good to begin with. The only way to know the condition is to remove them and look and mic them up. If you go that far replace them with the much better solids clutches.
Removing the clutches requires removing the carrier - which means you will have to mark the caps and deal with the shims.
I buy used diff all the time and rebuild them before they go into a car. Now is the time.
Removing the clutches requires removing the carrier - which means you will have to mark the caps and deal with the shims.
I buy used diff all the time and rebuild them before they go into a car. Now is the time.
Thread Starter
Instructor
Joined: May 2005
Posts: 222
Likes: 0
thanks for the comments, I will take a look at the assembly tomorrow.
The guy is asking $300.00 and says it's in good condition. "Good condition" means it worked when it was removed. He is willing to let me remove the cover and inspect it.
Is 300 reasonable?
-Jeff
The guy is asking $300.00 and says it's in good condition. "Good condition" means it worked when it was removed. He is willing to let me remove the cover and inspect it.
Is 300 reasonable?
-Jeff
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I bought a used 3.70 rear as a spare for my 4.11. I finally blew the 4.11 and put in the $325 dollar good condition spare I had bought. It howled from day one. I eventually rebuilt the whole thing with new gears, It is now perfect. You will not be able to really tell until you put it in unless something is obvious. You take your chances with anything used. 
