driveline vibes?

KarlVP · Apr 6, 2012

preacherman said:
usually as I am getting into the 2500-3000RPM range. And yes, I have adjustable upper and lowers adjusted to a correct pinion angle.

How are your pinion bearings? Maybe time for a diff inspection?

preacherman · Apr 6, 2012

You and I are thinking the same things! I figure on tearing that down tonight.

99redtj · Apr 6, 2012

Have you had your tires balanced or rebalanced lately,because that could cause vibrations also

KarlVP · Apr 6, 2012

99redtj said:
Have you had your tires balanced or rebalanced lately,because that could cause vibrations also

But if it goes away with the rear driveshaft out, the problem is in the drivetrain somewhere.

99redtj · Apr 6, 2012

KarlVP said:
But if it goes away with the rear driveshaft out, the problem is in the drivetrain somewhere.

Well then,I guess that it is in the rear diff.I had to regear mine not to long ago because of. Chip pinion gear, and another time for pinion bearing

zukkev · Apr 6, 2012

Is it more of a grumbly/growly vibe? or high resolution/high speed vibe??? knowing this may help pinpoint...

preacherman · Apr 6, 2012

high speed- I feel it mostly through the steering wheel...

I toyed with my driveline angle a bit, and it has altered it.

I am beginning to think that Karl is right and that the movement from the bad bushings are just effecting it that badly? Tuesday My new lower CAs come in. I am going to go rebuild my uppers tonight.

preacherman · Apr 7, 2012

Yeah buddy! I rebuilt my upper CAs, and re-adjusted my pinion angle (3 TIMES IN ALL TODAY). Only a tiny little vibration that I am willing to bet will end with the new lower CAs.

KarlVP · Apr 7, 2012

Rubicon Express control arms?

I had nothing but bad luck with their sort arms.

Glad to hear you fingered it out.

preacherman · Apr 7, 2012

Karl thanks for insisting that I look at my d-line angle. It was by no means sever but just not good enough. I figured it was something I needed to get to, but didn't figure it would cause that kind of vibe especially since it had been fine for two years. Overall I only had to adjust the upper arms by 5/8ths.

KarlVP · Apr 7, 2012

preacherman said:
Karl thanks for insisting that I look at my d-line angle. It was by no means sever but just not good enough. I figured it was something I needed to get to, but didn't figure it would cause that kind of vibe especially since it had been fine for two years. Overall I only had to adjust the upper arms by 5/8ths.

As Binder would say.........