Technical Check rear drive train bearings

[Hharbers]

I have a bit noice from rear end of mij 1987 4x4.
I have no backseat so it sounds coming from below that area.
I suspect propshaft hanger bearings or rear wheel bearings.
Rear diff had run a while with almost no oil so can also be cause.

How to find if bearings are ok? If i lift rear and rotate wheel the diff an propchaft rotatetes too so hard to feel if a wheel bearings is bad.

How to inspect bearings individually

 

[jackwhoo]

Disconnect drive shaft from differential.

Then check for rough bearing

 

[Hharbers]

Pull drive shafts out of axle ?

 

[jackwhoo]

Which ever is easier

 

[binhoker]

if you end up disassembling the prop shaft to replace the carrier bearings make sure to mark the parts and put them back the same way to keep them in balance (i made this mistake)

 

[Dragon Man]

i have got to replace the diff input/pinion oil seal on Talon, i am tempted to also replace the bearing in the diff too... if its easy and can be done while changing the oil seal, though i suspect i would have to go inside the diff housing to change it.

yes make sure that the prop shaft is all marked up before taking anything apart. i sadly did one and i have never yet managed to get it balanced.