Rear End Locks Up When Turning (why)

[SIDMAN]

Hey guys I need help

My 90 k2500 rear end locks up when turning a tight radius as if you applied the brakes. I pulled the drums and found a leaking axle seal and i fixed it. I then cleaned everything and refilled diff. No chunks of metal were found in differential. The problem is still there and it still locks up when turning tight.

What is it?
All help is appreciated

Sidman

[2000CAYukon]

Originally Posted by SIDMAN

Hey guys I need help

My 90 k2500 rear end locks up when turning a tight radius as if you applied the brakes. I pulled the drums and found a leaking axle seal and i fixed it. I then cleaned everything and refilled diff. No chunks of metal were found in differential. The problem is still there and it still locks up when turning tight.

What is it?
All help is appreciated

Sidman

If you have POSI (or limited slip), then you need to add an additive for the POSI. I like to use GM POSI fluid. It usually comes in 4 oz bottles. Add 1 bottle and if it still does it, add a second.

//2000CAYukon

[mtmaurer8ooo]

If the posi additive doesn't do it, which I doubt it will...you may be experiencing a different issue. You may have a bad clutch asy in the rear if you have a locker, and if not then you may have spider gear issues. MM.

[chevrock22]

Originally Posted by 2000CAYukon

If you have POSI (or limited slip), then you need to add an additive for the POSI. I like to use GM POSI fluid. It usually comes in 4 oz bottles. Add 1 bottle and if it still does it, add a second.

//2000CAYukon

Lucas Oil Additive is also a good thing to add in anything.