1986 Dodge Axle B 150 trouble

Hello everyone - I have a 1986 Dodge van B150 with a V8 and auto trans.

Here is what I have ... I started with a grinding noise and feeling in
the rear axle ... this only happens when I turn left from a dead stop
....so from a stop turning left I get this only and just a little now
when streight but never from a right hand turn ... I have replaced the
U-joints with no help. I pulled the cover to the rear end and no metal
or anything broken looking. Going down the road is fine .. no pinion
noise or anything ... but from a stop giving gas in a right turn in
feels like some thing is gonna break at anytime. Can anyone help with
some advise?


Thanks in advance,
Dave

I would pull the wheels and see how the brakes are holding up. If nothing
there, I would look at the
axle bearings.

axle bearing is the hum along with tire pressure?