U-joint constantly breaks....

[jester]

I constantly keep breaking the U-joint on the rear drive shaft at the t-case. I can only drive for about 1 to 2 days and then it breaks. I had 1/2 ton running gear with 3.08's and it was doing it, then I swapped out 3/4 ton running gear with 4.10's and it still does it. So I swapped out the drive shaft for anothing thinking that it may have been out of round or balance, but this one keeps doing it to. I have checked the t-case fluid and changed it. I only have a four inch lift and my blocks are slightly shimmed, so I don't think it's the angle. I have a NP203 transfer case. Any help would be greatly appreciated I would love to be able to drive this thing.

 

[blackblazer717]

shim the t-case down with the factory round stock. than ditch those blocks for non saggy springs and a set of ORD shackle flips

 

[Pookster]

how are your angles? How extended is your drive shaft out of the tcasE?

 

[84_Chevy_K10]

If you're breaking u joints, they're binding, without question.

I'd imagine axlewrap is causing the binding though...lose the blocks and it will probably stop binding.

 

[spoolnaround]

This is what happens with extreme axle wrap.
You dont have to worry about the u-joint just the yoke /forums/images/graemlins/doah.gif