How do i adjust the side of the carrier bearings after replacing them?

Hi,

There is a special tool that is used to adjust the threaded adjusters. Also, I took a portion of your pic and circled the lock. Is this the part you are referring to? If it is, then that needs to be removed to adjust the bearings and then reinstalled once the adjustment is complete.

Keep in mind, when adjusting the carrier bearing, it correlates directly with the pinion gear. That is where the actual adjustment occurs. The carrier bearings simply move the ring gear assembly left and right. The tool will be inserted from the end of the axle, travel through the axle, and then go into ring gear assembly. Once installed, then the free play has to be adjusted within a specified tolerance.

Now, if you look at the pics below, they explain how the adjustment is done. Take a look through them and let me know if you have questions.

Pic 1 below is from your original pics. The remaining pics are the directions for adjustment. Note: Most of these trucks came with a 9.25 differential. If you have an 8.25", let me know. These directions are for the 9.25".

Take care and let me know if you have questions.

Take care,

Joe

See pics below.

got 8.25.

I am putting a used rear end in an wanted to know what to test an look at before bolting to driveshaft .

 It is identical to mine .

Is there a turn test with front pinion?

An how can i tell if front pinion bearings went bad on old one ?

Anything else before i install an test the used one?

Hi,

If there is a pinion-bearing issue, you should feel it when turning the pinion shaft. It will have a rough feeling about it. Also, a bad bearing usually causes a leak at the seal and makes a howling noise when moving.

Next, check for excessive end play at the axles. A small amount is normal, but it shouldn't be excessive.

I attached directions for removal and replacement. Let me know if this helps.

Take care,

Joe

See pic below.

I'm not sure the mark on driveshaft to new rear will line perfect but i have it in neutral as i line up 4 bolts.
The rear i got was still in drive. will that factor anything? it has been turned in both directions to be sure it's not LSD...
I don't see a problem as long as the shaft it in neutral when installing. it will either turn one way or the other if not in neutral.

Hi,

If the bolt holes don't align, you can turn the pinion shaft in either direction to align.

Let me know if it goes together for you.

Jo

Yes, i got it lined up.
Of course the shaft was in neutral.
I added fluid an turned shaft a bit an tightened the 4 bolts an used Loctite..
Seems to turn okay.

Anything to look at before starting it an testing it with tires in air?
I need to see if outer seals/bearings at axle ends feel tight also.
I hope the front pinion an carrier bearings are smooth .
..

Hi,

Just make sure the fluid is full. Also, if there was a bearing issue, you would have felt it when turning it by hand. Chances are, it is good. Pay attention to evidence of leaks near any of the bearing seals. If there are any, replace the seal and inspect that bearing.

Also, the part you attached the driveshaft to with the four bolts is called the companion flange. It wasn't removed, correct? If it was, the nut will need torques. However, if I recall from your pic, it was still on the differential, so it shouldn't be an issue.

Let me know.

Take care,

Joe

I don't think this other diff is working in drive w car off shaft doesn't turn wheels...

What do i do to test it ..i may have put a bad one in?

I hope i didn't mess up front or transmission .i heard a thump noise as a i put it back to P.
Once i put it to drive with running an didn't seem to work..

Note: no weight on it.

Note no weight on it ...
Should i put the tires on an let the weight factor or will that mess it up?

If its not running in drive how can i turn the shaft and wheels to tell it's okay?

Wheels did turn correctly. I'm going to try it again with tires on but up in air .

Should the tires be able to turn with engine running in park with it jacked up ?

If you have both wheels off the ground, they will turn in park unless you have a traction lock differential. I don't believe this one is.
Note: The wheels will turn by hand, but the driveshaft won't turn because the transmission is locked in park. Is it possible for you to record what is happening and upload it for me to hear and see?

As far as the clunk you heard, I suspect it was the parking sprag engaging when the driveshaft/rear wheels were turning. It would be like placing the vehicle in park when moving.

Let me know.

Joe

Okay, that's good to know.
Can i mess anything up by putting it in drive with wheels down?
I would prefer up off the ground but with no traction. i may not see the accuracy.

Hi,

It won't hurt anything. Put it down and see if the vehicle moves for you. I have a feeling everything will be fine.

Let me know.

Take care,

Joe

It went forward and back just fine! Now for the real test. I hope i have no hum or vibration.

It did great at 65 MPH!!

Good job. I'm glad it's back together and working for you. By the way, looking at the pic above, you do good work. It looks really good.

Take care of yourself and feel free to come back anytime in the future if you have questions or need help. You are always welcome here.

Joe