Powr Lok Problem

So I rebuilt the power lok in my 69 cj5 with a new clutch pack its a Dana 44 19 spline. Everything worked great i drove the Jeep a few times maybe 15-20 miles. I took it out today to get gas and I made a right turn and it made a screeching sound and it didn’t go anywhere. I put it in 4 and limped home, after I got home upon inspection the drive shaft was spinning but would not move anywhere in 2wd. I pulled in the garage disconnected the drive shaft put a pipe wrench on the pinion yolk and it turns fine, it is tights and moves the back tires fine. I pulled the diff cover there are some fine metal shavings i can see everything looks intact no missing teeth anywhere and everything turns by hand. I’m completely stumped and suggestions??? Thanks I’m advance

 

Friction disk plates must be aligned before assembly to allow axle to enter “ALL” clutch plates.
It seems possible that one of the innermost plates was not properly and fully aligned upon re-assembly.
They must be aligned by assembling the Powr Lok case with axle shaft fully inserted into the side gears and beyond.

 

I did check that when I installed them because if that was the case the axle shaft would not slide in all the way because all of the splines have to line up to install the axle shaft correctly. Unless it was the last one closest to the block.

 

Ok just checking.
So if I understand corrrctly the rear locked up for no apparent reason but now it is free ?
Is the fill plug hitting on the differential case ?

 

The rear never really locked up when I put it in 2 wd in my drive way the drive shaft was turning the from the trans into the diff but it would not budge the vehicle. Same symptom
If the teeth had stripped on the ring or pinion but when I took the diff cover off everything looks good

 

I think one of your rear wheel hubs has spun, keyway, nut not tight, broken axle shaft.
Maybe jack the rear up and push/pull each rear tire checking for excessive play.
grab top/botton and check for play.
Then spin one and the other should spin same direction.

 

I did jack it up and spin the drivers tire and the passenger tire spin in the same
Direction. I did disassemble the driver side and pull the axle and everything looked good. I ran out of time tonight, tomorrow after work I will
Check the key way and hub on the passenger side.

 

So i got some time to dig a little deeper into my problem as you can see the large washer/spacer that goes behind the backing plate is severely worn and unusable. I’m not sure what would cause this and secondly that axle will not seat in the differential anymore and the bearing sticks out 3/8” from the flange on the housing

 

Then the button has come out of the limited slip.
Pull the axle shaft, and look down inside the tube.
The button is to be inserted into the hole in the cross shaft.
If it's not there, you need one on both sides to set your axle bearing endplay.
You also need a new bearing retainer plate obviously. That's your squeal, and when the axle came out
you lost rear wheel drive.

 

Yes could certainly be that the “center block spacer” has separated and fallen out of position.
It’s likely destroyed too.
The 3 piece center block spacer sets inside the 2 spider gear cross shafts.

 

Okay so the button is in tact and moves pretty freely as I’m guessing it should? old time called it from his first response I later pulled the carrier out and the splines in the spider gear and the last few clutch plates moved on me so slightly allowing the axle to not seat in the whole way. Thanks everyone for your help!

 

Glad you got right on it before something expensive gets broke.
Yes the center block spacer floats so that you can adjust wheel bearing shims on either side.