A question about driveshaft angles

[Eric M.]

We're talking rear driveshaft here. I know the angle at the transfer case should match the angle at the rear pinion, BUT, what happens when you have a 2 piece rear driveshaft with a U-joint in the center? Does it matter where you position that joint (up or down)? Any angles you have to consider here?

It seems that regardless of where you position it, you will be introducing some sort of vibratio as the suspension travels up and down as you do not have a 4th U-joint to cancel that one.

Anyone??



Thanks,

Eric M.

 

[Eric M.]

Oh come on ..... no one??

Where's Jess?

 

[HELLBENT DESIGNS]

you have a pm!

 

[nvrenuf]

Eric, any good answers on this? I have a vib in my crew cab that I'd love to fix.

 

[nvrenuf]

ttt

 

[Eric M.]

This is what I got from Jess when I called him. He was going over it pretty fast and I might be leaving out a few points. He said all set ups are a little different, but, here is the BASICS for the split rear driveshafts.

-The shaft leaving the transfer case (or tranny in 2 wd set ups) wants to be pointing down 2 degrees more than the output shaft of the transfer case (or tranny).

-The pinion angle of the rear dif. needs to match that of the first driveshaft, NOT the output shaft of the transfer case as is the case with a single driveshaft set ups.

There's the basics. Get out your angle finder and check those angles on your crew cab!

Good Luck,

Eric M.

 

[nvrenuf]

EXCELLENT info! THANKS!!!