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Diff centre won't turn when I tighten up axles

monroegtx

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Hi all. first of all apologies if I slur, I've been drowning my sorrows after an unsuccessful attempt at putting my rear end back together today. After waiting over a month and a half to get all the parts here i put my 8 3/4 rear end back together. Shipping company issues not suppliers. I had an open diff and after reveiwing your opions here I bought a powr-lok from Dr Diff to make it LSD while I had it apart. I'm no mechanical genius but I do like to attempt things myself and generally get through alright. However I think that I've stuffed something up. When tightening up the axles to the housing they become firm and stop rotating. I've replaced with original style bearing and adjuster. When I loosen off the axles again and turn the centre by the yoke it feels firm but then frees up again, which makes me think that the problem is in the carrier. I had the adjuster right out when installing so that shouldn't be the problem. Hopefully I've just overlooked something simple. Any ideas will be appreciated. Cheers.

Just an afterthought. I put the bearings on the axles myself with a pipe. I thought that I had seated them ok but if I didn't would this cause the problem i'm have\ing?
 
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If you went with green bearings, did you remove the center pin in the gear set?

With adjustable bearings, the one side bolts up solid and the other side is how to adjust the play in the axles. The axles actually don't meet in the middle of the housing....they are about 3/4" short. To make the two axles meet, there is a center pin in the gear set. Since the green bearings do not have adjusters, if you don't remove this pin, you may be going to a solid stack up.
 
sometimes those plates flex a bit when tightend down at the axle flange.take a good sized drift and a small sledg hammer and give the axles a whack in the center of the end.(middle of the studs)see if that loosens them up.if not,you may have to pull the axles and have new bearings installed by a machine shop.not sure the pipe method will get you a good even seatting of the bearings.
 
sometimes those plates flex a bit when tightend down at the axle flange.take a good sized drift and a small sledg hammer and give the axles a whack in the center of the end.(middle of the studs)see if that loosens them up.if not,you may have to pull the axles and have new bearings installed by a machine shop.not sure the pipe method will get you a good even seatting of the bearings.
I'll give that a try thanks '67.

I went with the original style bearings not the green, thanks anyway Dsd1967.
 
I bought new axles, green (sealed) bearings and a 489 case built by Doctordiff (Cass) and can barely turn the axles without the wheels on. I informed Cass who said it was OK. By the way, Cass installed the bearings on the axles before he shipped them.
 
I bought new axles, green (sealed) bearings and a 489 case built by Doctordiff (Cass) and can barely turn the axles without the wheels on. I informed Cass who said it was OK. By the way, Cass installed the bearings on the axles before he shipped them.
I would of thought that no movement was bad, just goes to show that if it seems wrong it isn't always so.
Anyway I tried what '67 Coronet suggested and it turned out fine. Everything tightened up great and I was able to turn the axles. Thanks very much for your input guys. :VB toast:
 
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