Differential problem

[bwing]

I took my '66 in for a 4 wheel alignment and when the mechanic put the Hunter clip on mechanism on the rear wheel we noticed that the wheel had play in it. Pushing/pulling on top and bottom caused the half shaft to pull out of the differential a little. About 1/2" on the right rear and 3/4"-1" on the left rear. What would cause this? Is it an expensive fix? Needless to say, it didn't get aligned.

 

[GTR1999]

sounds like worn side yokes but there are other causes as well. I have a good link to diff into. PM me and I'll get it to you. I had one a couple of months ago where the yokes were still good after 40 years but the posi case was the problem. Instead of junk the case I was able to machine it,make it stronger and resolve the yoke issue re-using the yokes.