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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   Drive Shaft Repair I have a 2015 Chevy Traverse AWD. The fr...   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...

Search Auto Parts Search 02 Silverado z71 rear end issues Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting king New User Feb 23, 2012, 8:56 PM Post #1 of 4 (4519 views) 02 Silverado z71 rear end issues Sign In 02 Chevrolet Silverado 1500 LS Z-71 regular cab short bed. 5.3 liter gas. 98000 miles. G80 rear end. I have been having an intermittent metal rubbing sound coming from the rear end for the past several months. The most common situation where it occurs is going around a sharp right hand curve with a good bit of speed. I thought it was brakes at first and had firestone do the rear brakes. The problem persisted. I thought myself it might be the outer wheel bearing as the sound seems to come from the rear left side. I took it to a Chevy dealership and they could find nothing wrong. Then I tried a local shop and they drove it around and could not produce the noise I was hearing. They had it on the lift and could hear some light noise coming from the rear end. They thought it might be the clutch in the rear end. I had them service the rear end and a small piece of a tooth came out with the old gear oil. The sound persists, but seems to be muffled a bit now which makes me think the new oil affected it and the problem is in the rear end and not a wheel bearing. I am guessing I am at a point of rebuilding or replacing. Should I have someone rebuild my rear end? Can I buy an aftermarket rear differential and that bolt up and work? What should I do here? re-tired Veteran / Moderator Feb 23, 2012, 9:28 PM Post #2 of 4 (4484 views) Re: 02 Silverado z71 rear end issues Sign In You did not say if it was a posi rear end or not . If it is there is a additive that must be added to the fluid . BUT if you have piece of internal workings if its a tooth its probably a side (spider) gear, in the oil you may consider getting it rebuilt or a low milage salvage complete axle. Either way be sure to get the same ratio. LIFE'S SHORT GO FISH king New User Feb 23, 2012, 9:45 PM Post #3 of 4 (4479 views) Re: 02 Silverado z71 rear end issues Sign In It's a posi-track rear end. The guys at the shop I spoke to spoke of the additive having to be added to the fluid, so I assume they did it. I thought about trying to find a used rear axle assembly, but craigslist and a few salvage yard inventory checks have yielded no results. I'm in Arkansas and rear lockers are prime pieces of equipment here. Would a rebuild be economical parts/labor wise over getting an aftermarket rear differential? I have read the G80 rear ends are subject to failure with hard use and I would believe it. I have never towed anything or hailed over 400 pounds in it, and that was like twice. re-tired Veteran / Moderator Feb 23, 2012, 11:25 PM Post #4 of 4 (4471 views) Re: 02 Silverado z71 rear end issues Sign In If your going to keep truck and its in good shape then in my experiance an Aurburn posi unit is top of the line.I've installed several in everything from a stock truck to a mud racer. Expect to drop $500+ - P&L . If too rich for you ,go to a dealer and order a set of spider gears,have a shop install. Auburn, Lockers, Eaton Posi Units for Cars & Trucks LIFE'S SHORT GO FISH   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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