matching belts

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500, 472, 425, 368 Discussion, matching belts in Cadillac Engine Technical Discussion; I bought two belts that go around the compressor and power steering pump and when I got home I noticed ...
  1. #1
    72HearseGuy is offline Cadillac Owners Member
    Automobile(s): 1972 fleetwood hearse
    Join Date
    May 2012

    matching belts

    I bought two belts that go around the compressor and power steering pump and when I got home I noticed the packages have slightly different measurements. One is 13/32" x 60 1/8" and the other is 3/8" x 60 1/8". Measured in MM one 1525mm and the other is 1526mm. That small difference should be fine right? the teeth on both belts look different too.

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 F150 SuperCab 4x4
    Join Date
    Feb 2006
    MD Eastern Shore

    Re: matching belts

    If all your pulleys are cut for two V-belts on each accessory you MUST use the same - exact same - belts. While the same part number is OK, a few belt manufacturers package belts in matched pairs.

    Take a hard look at one of my marine engines that I built - the belts are a matched pair from Gates. At least get the same top width belts - that should be easy.

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