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  1. #1

    Default 01 Silverado Rear End Noise

    I have 01 Silverado LS ext cab 4 wheel drive that has started making a whining,roaring noise in the rear end. I stopped by a dealership to find out what kind of rear end it has and all they would tell me is that it is a 3.73. The noise is constant from them time you pull out to stop. Gets louder as you go, quieter as you slow down. Had a service man tell me to fill of the rear end where the outer axle bearing are to see if it felt hot, it didn't. Felt the stump where the bearing are and it was hot, does this mean these bearing are bad? How can I find out what size rea end I have? Any information will help. Thanks Billy
    Last edited by napiers04; 09-24-2009 at 01:40 PM. Reason: mispelled words

  2. #2
    Sr. Apprentice msvx95's Avatar
    Join Date
    Sep 2009
    Mentor, Ohio


    Should be a 3:73. I have an 01 as well and when I first owned my truck I had driveshaft, rear end issues.
    I had the yoke assembly replaced twice in the back where the driveshaft connects.

    Have the dealership or mechanic check to see if the assembly is in balance or maybe there is too much play in the yoke assembly too.
    You could very well be low on differential fluid.

  3. #3


    Just changed the carrier bearing, when I pulled the stump out bearing fell out, thought that might be the problem NOT, still got the noise. You ask if it makes a difference if you turn, no it doesn't. It starts as you get going and stops as you slow down. Is there anyway that it could be coming from the transfer case? I got in the back of the truck and listen sound real loud between the bed and cab. This getting very annoying. any help is appreciated

  4. #4
    Master Mechanic CarpenterGuy's Avatar
    Join Date
    Jul 2008
    Leeds, Alabama


    if you think its the transfer case, check the fluid or just go ahead and change it. switch through the 4wd gears too and see if they work fine.
    2006 Silverado Z71 - 97,000 - totaled, RIP
    2006 Silverado Z71 - 122,000 (K&N 77 Series CAI, PowerAid TBS, Magnaflow dual rear exit, 33x12.50 Mickey Thompson MTZ, Tuff Country Torsion Keys, Tuff Country Add-A-Leafs)
    1966 C10 swb stepside (Gen I 350, Turbo 400 trans, dual cyl power brakes, front discs)
    I'll keep my money, guns, and freedom. You keep the Change.

  5. #5


    Try running the Transfer case in neutral and see if the noise is there. Did you check the pinion bearings?

    2004 SILVERADO 2500HD LS
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    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows

    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

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