Passenger rear tire is skipping or dragging, differential?

LORTEGA957

MEMBER
2006 GMC SIERRA
5.3L
V8
TURBO
AUTOMATIC
340,000 MILES

Okay first question my passenger rear tire is skipping or dragging when making a right turn at a very low speed. I put the rear axle up it was a little loose so I ended up replacing the seal. And the bearing cuz the differential look good. Took it for a test drive but still having still doing the same thing. I check all the brake lines nothing leaking. I plugged in my ob2 reader. I got 3 codes. It telling me all 3 wheel speed sensors are bad. So I replaced all there sensors. Can any help e I'm

Sunday, March 1st, 2026 AT 10:02 AM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
54,972 POSTS

Hello, this does not sound like a brake problem it sounds more like the spider gears, or the limited slip is locked up. Jack the rear of the truck up and spin the rear wheel on the right side, if the left side spins the same way this will be the problem, I would remove the rear diff cover for inspection, this video can help you.

https://www.youtube.com/watch?v=6F26Kir0OCg

Look for metal shavings in the gear oil and then use a flashlight to inspect the spider gears. Please upload a short video in your response of the problem, so I can see what's going on. Ken

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Sunday, March 1st, 2026 AT 10:25 AM

LORTEGA957

MEMBER
2 POSTS

Thanks for answering back I had cover off last weekend. There shavings on the magnet. My nieces friend came and look at it. He said is good. I just had replace bearing and the seal that's what I did. K drop I replaced it drop it and it did the same thing. I'm check out the video you sent. I was such a hurry it did done. I'll get back to you

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Sunday, March 1st, 2026 AT 10:53 AM

KEN L

MASTER CERTIFIED MECHANIC
54,972 POSTS

Sounds good, if you upload an image of the spider gears I can tell if you have a limited slip or not. Also, rotate the wheel clockwise to see if the another spins in the same or opposite direction. This can help us. Also, the differential must have the correct fluid in it for limited slip to help the clutches work correctly.

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Sunday, March 1st, 2026 AT 11:19 AM