Serpentine Belt #'s? NO Gatorbacks? :(
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Cadillac STS-V Series Forum Discussion, Serpentine Belt #'s? NO Gatorbacks? :( in Cadillac V-Series Forums; Since I am waiting for the title for my V I been going through everything and noticed a few cracks ...
  1. #1
    kac1023 is offline Cadillac Owners Member
    Automobile(s): 07 STS-v
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    Serpentine Belt #'s? NO Gatorbacks? :(

    Since I am waiting for the title for my V I been going through everything and noticed a few cracks in one of the serpentine belts so I'd like to change all 3. I used the Goodyear Gatorbacks on my Silverado SS and loved them. On their site they have where I can put the VIN in to find products and NOTHING came up . They found the right car by the VIN, but no belts for it. What does everyone here run? Even if I get the part # I can cross reference to find the Gatorback ones.


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  3. #2
    todrules is offline Cadillac Owners Fanatic
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    Re: Serpentine Belt #'s? NO Gatorbacks? :(

    I don't know the other belt sizes off hand, but the supercharger belt for stock pulley is an 8PK1380. I have the old one sitting on my workbench.

  4. #3
    kac1023 is offline Cadillac Owners Member
    Automobile(s): 07 STS-v
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    Thread Starter

    Re: Serpentine Belt #'s? NO Gatorbacks? :(

    I found them through Summit, and cross ref'd the #'s
    5 rib 37.50" in length (Alternator) Gatorback #4050375
    5 rib 61.00" in length (Water Pump, AC and Power Steering) Gatorback #4050609
    8 rib 54.50" in length (Supercharger) Gatorback #4080545

    The 61"er I can only find in 60.87" I don't think that will be a problem.

    http://www.summitracing.com/search/y...ccessory-belts

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  6. #4
    TimmyC is offline Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V and 2007 STS-V The Murdalac
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    Re: Serpentine Belt #'s? NO Gatorbacks? :(

    I use and recommend Gates belts but have not tried Goodyears.

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