Rear End Locked
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 17
Likes: 0
Rear End Locked
I have been restoring a 1968 and rebuild the differential, it is all put back together but had the car sitting on stands for a long period of time to do work now that the car is back on the ground appears the Differential is locked up and will not turn. I have had this car rolling in the past so I am baffled. I have disconnected the driveshaft to make sure its not the tranny still locked. Any Ideas?
Race Director
Joined: May 2006
Posts: 18,736
Likes: 2,582
how do you know the ebrake shoes arent the problem?
did you release all tension on the cable adjustment under the car?
did the remove the wheels and can see the lever the cable attaches to is fully released?
did you release all tension on the cable adjustment under the car?
did the remove the wheels and can see the lever the cable attaches to is fully released?
Melting Slicks
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
Disconnect the haft shafts from the trailing arms. That should help you narrow down the culprit that is causing you grief!
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 17
Likes: 0
As stated above..I am going with the aftermarket Wilwood Parking brake caliper and Its not installed yet..removed the original e brake system so there is no Ebrake..I have 1" of movement and hear a "clunk" sound..Feels like something is binding but on exterior is all clear...What could loosen up inside after all this time to cause? or any other options..Just dont want to pull the diff if I don have to ..
Melting Slicks
Joined: Jul 2010
Posts: 3,176
Likes: 633
From: perth western australia
There was a similar thread on here not long ago , it turned out to be the wheels he put on the car had lead balance weights that sat too high and got caught on the brake caliper .
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Verdad Gallardo
Tech Contributor
Joined: Aug 1999
Posts: 15,175
Likes: 3,987
From: Connecticut, USA
As mentioned, isolate the diff- disconnect the 1/2 shafts and turn the driveshaft with the trans in neutral. It should spin without binding. If I still binds up you have to remove the diff. DId you rebuild it or have someone do it? If you did then you would know how it was put together and it sure wouldn't be binding up. Just sitting with residual oil on the bearings and gears should not cause anything to bind, if you had someone rebuild it and just installed it then all bets are off. I can show you some very interesting pictures of "rebuilt" diff's I have had to correct. The good news is you didn't power it up and break it. It might be something simple like a Ring gear bolt but you better find out.