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-   -   GM 10 bolt rearend gear ratios (https://www.askmehelpdesk.com/showthread.php?t=217163)

  • May 18, 2008, 10:36 AM
    buzzfuzz55
    GM 10 bolt rearend gear ratios
    I have an 85 GMC Jimmy that the rearend has gone out. I would like to know if the stock gear ratio is the 3.73 or 4.11, or did it vary. Thanks
  • May 18, 2008, 11:26 AM
    this8384
    There should be a tag on the rear differential cover or it might be stamped on the cover itself. That should tell you what the ratio is. If not, you could try calling a dealer with the VIN #; they might still have it on file.

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