rear driveshaft angle

[jester]

The Jimmy I aquired had a 4 inch lift put in it and I have been breaking U-joints on the rear driveshaft. I was told it is because my driveshaft angle is off and was not compensated (spelling?) for when they put the lift in. I was going to put some shims in it to make it the right angle, but what angle is it supposed to be at? Thanks!

 

[fad2blk99]

I'm not sure what the normal operating angle is for a stock u-joint (though I'm sure there's a number floating around somewhere) ... but you're having trouble w/ only 4" of lift????
Maybe you could lower the t-case and use a degree shim to tilt the pinion up a little bit (if you have done this already)

 

[jester]

Alright, I will try that, but how far should I lower the t-case? Thanks!

 

[ugly_blazer]

What was used to lift the back?

 

[highrider_44s]

i assume you have just two u joints /forums/images/graemlins/dunno.gif
you have to run them within 3* maby 4*if you had to
the trick is to get both u joints at oppisite angles
so if you have 2 down on the top make the bottom 2 up or whatever the angle works out to be /forums/images/graemlins/waytogo.gif
do you get alot of vibration while driving /forums/images/graemlins/dunno.gif
also might be a idea to get the driveshaft balanced /forums/images/graemlins/waytogo.gif