JamromXJ

Hi. I have to get my rear drive shaft angled better. Right now I have a 3" lift, with a 1" TC drop.

The vibes are annoying as hell. So to shim the rear a little better, what angle do you use? I've read there are several sizes by inch, but how can I calculate the right amount?

Eventually I'm going to do a H/T conversion, but for now, the rear pinion angle adjustment will be fine.

Thanks.

JR

SeriousOffroad

You're going to have to get an angle finder to determine the correct amount of shim-age needed.

$12 at Lowes.

PJB

What condition are your u-joints in? That could be the problem.

gunmetal_nightrider

Agreed, check those u joints. You might also want to check your front steering components. Ive heard of folks thinking they have rear shaft vibes when its actually their track bar rattling around.

ehall

Do you have an SYE? Shims are used when you install a SYE and need to set the pinion at the same angle as the driveshaft. With a traditional rear shaft and a slip yoke, the two ends should be parallel with each other, no shim.

Probably need to do more diagnosing

Fred/N0AZZ

Why do a H&T when you can buy an SYE so cheap like the RR ones.


Do it right the first time and don't look back.

JeepMN

How is using a HnT "doing it wrong"?

SeriousOffroad

Full SYE's have a stronger mainshaft.

JamromXJ

U joints are all new. Front end is good. Here is my present rear drive line angle
Don't mind the tank, I'm swapping out the pump and doing some undercoating.

JamromXJ

ehall

I would pull out the front driveshaft and eliminate that first

Your front axle is more likely to need the angle corrected, especially with the tcase drop

JamromXJ

I have adjustable LCA's so that's a possibility. I might have them too far forward.

I'll give that a try this week. Once I finish the fuel pump, I'll give it a test run.

Thanks,

Fred/N0AZZ

When I researched SYE's 2 yrs. ago this is what I found after 4 hrs. of reading.........Guess I should have asked Frank first and saved time.