This product is formulated with stabilizing anti-oxidants and special metal deactivators that ensures the smooth performance of the engine and gear applications. So, Im thinking the pinion bearings are gone and probably the carrier bearings. I haven't taken the time to see about rebuilding it yet. I only drive in 2wd but tested it myself in auto 4wd and traction control off and still getting clunk. A mechanic insisted it was the U-Joint. Depending on thte speed I go, it goes away.
It also had a pop noise when making left turns. They might give you a story that the rear end fluid broke down. The vehicle began to make rubbing sounds when turning corners and losing a little power. The seal on the rear axle pinion, which provides power to the rear wheels, could leak fluid, causing the wheels to seize and lock. Had the truck in to dealer 7 times in the last 5 years to have yoke serviced with high temp grease.
Gm instructed the owner to have the vehicle towed to another dealership to have gm look at the vehicle. Ok, so im going down the road the other night and all of the suddden I start getting this horrible howling noise comming from the rear end. Can break cause major accident or death? Cool you were handy enough to do it. I hear a grinding sound vicinity the rear passenger wheel when I am driving. I dropped the shaft, replaced front and rear and now squeals, grinding, and clunks are gone.
My mechanic says it doesn't clunk in 4wd, was raining good when he tested it. It freaking joke 6 months later same problem. I would like to bombard them with information. Now I am with out a vehicle. Just sometimes equipment doesn't last.
Several Chevrolet service consultants rude and threatening to hang up on me. Own classic cars and fair mechanic, always ran mobil one in it after break in and service3d it didn't want to tackle the 5. If it keeps moving, regulate it. Kinda lost as to just get a used rear end or have rebuilt at cost of about 1600 dollars, which I do not have laying around. A mechanically sound vehicle should be quiet, other than a little brake squeal.
As I would like to be as specific as possible when talking to the dealership. Work gets a couple a year for rear end bearing jobs. ? More than fair, and fewer things to have to worry about later. Now that the differential is out, I can see that it is bent and the axles crystalizing due to the violent shaking. I dropped the shaft, replaced front and rear and now squeals, grinding, and clunks are gone. They are ordering the part and will replace it on Friday. Good deal, especially in the long run.
This damn slack in rear end is driving me nuts but the dealer says there's nothing wrong. The dealer determined it was due to catastrophic failure. Out of despiration from the vehicle shaking violently, causing me to pass bloody stools, I decided to replace the differential myself. The cost of replacing a rear differential depends on the degree of the repairs that need to be done. They are ordering the part and will replace it on Friday. They have a complete history of our complaints after we bought it.
I replaced the whole unit because I was told that rebuilding the original wasn't a viable option. Thank you, Blake Tumlinson My car has 175000 miles. Hasn't rained much to test in 4wd to make sure it doesn't clunk like my mechanic says. If I had not changed the differential myself, I feel that it surely would have caused a major accident and deaths due to the failure of Chevrolet not taking care of this. It wasn't doing it at every stop but it has started doing it a lot more frequent.
Now, you can continue towing your vehicle. I knew something was wrong but assumed a bearing and couldn't tell where. J cat, I had my transfer case crap out due to worn parts no less. The clunk stopped for a day after lubing splines. What Happens When Your Rear Differential Goes Out? I rotate the tires every 6K.