View Full Version : 76 Landcruiser Rear Drive Shaft Vibrations

11-08-2009, 08:01 PM

So who's the cruiser expert in the house?.. 76 Land cruiser, Spring over running 35's. Huge Vibration coming from the Rear drive shaft at low speeds. Huge as in the entire cab shakes/vibrates.

I have a sneaky suspicion it's the angle of the drive shaft to the transfer case. and yes rear diff was tilted when we did the spring over,

if thatís the case whatís the fix? add another u-joint to the drive shaft in a double Yoke scenario, who's the drive line specialist in town?

or could it be something else???..

Oh and yes if I take the rear shaft out and only run it with the front it goes away.

FU Toolbag
11-08-2009, 08:53 PM
Your u-joints should be in phaze and ay almost the same angle. If you've rotated the rear and the front is where it was, you will have a problem. You will need a cv in the front.

Always broke
11-08-2009, 10:01 PM
Yup the u-joints must be in phase and make sure it is the correct length and that there is no play in the rear pinion

11-08-2009, 11:00 PM
Go see Trent at Truckworks.
they are across Hwy 97 from Jacobsen GM in the same building as Matress Matress

11-09-2009, 11:09 AM
Pretty much all covered, U joints, need of a CV joint at the T case, pinion bearings or loose pinion nut, same for the T case itself, also look for a bent or dented drive shaft.

dirka dave
11-09-2009, 05:57 PM
Is there any obvious damage to the D/S ?

Does it look like some balance weights may have fallen off. ( they are about the size of a quarter)

11-11-2009, 08:31 PM
Yea I'm thinking the CV joint at the T-case will be the solution to big of a Vibrations for it to be just a weight issue, Drive shaft looks good not major dents, haven't checked to see if there's any play in the Pinon though.

11-11-2009, 08:50 PM
yep...will need a DC shaft. can easily get one made up using a taco or similar shaft...