Question about 2000 Chevrolet Silverado 1500

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I have a grinding/scraping noise when driving forward. It sounded like rear brakes, and I checked/replaced rear parking brake parts that were suspect. Also changed rear drive shaft ujoints after noise continued. sounds like the noise is coming from the transfer case. it lets up during or after a right turn, then starts up again. any ideas?

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Good Evening, those noises can be annoying and sometimes hard to find. However it sounds like you have a front hub assembly going bad. Usually the noise goes away when you veer one direction or the other. I have heard some transfer case noises but they usually do not go away on turns. Check those front hub-wheel bearing assemblies and see what you come up with. Hope this points you in the right direction.

Posted on Oct 08, 2010

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  • barsandman Oct 08, 2010

    Just did the front hubs, the noise is there with the front wheels on the ground, rear axle jacked up, transmission in neutral, just by spinning the tires, i can hear it.

  • cjkelly025 Oct 08, 2010

    I had one a while back that the transfer case the chain was slapping inside the case, but those are so few and far between. Of course I have had a rear wheel bearing go out that made an odd noise like a dry ujoint at one time as well. Can you pinpoint the general area l;ike remove the rear driveshaft and spin the rear end and see if the noise is in the rear end then spin the front driveshaft and see if it sounds like there or the transfer case?

  • justin2828 Oct 24, 2010

    i am no mechanic, but am having same problems on my 04 silverado. it will make grinding sound when turning to the right slightly. my dad owns the same truck as me, and i stumbled upon the answer when i did some work on his truck. his front left cv joint is going, it makes a popping sound over bumps when turning, after replacing this everything was back to normal. while i was looking into how to install cv joint. i came upon a website that said bad cv joint will have many symptoms including grinding/humming/moaning when in a turn. replaced cv joint on my truck. no more terrible grindnind sound! i was in the same park as you thinking it was my transfer case but for about 100$ it was fixed

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