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  1. M

    Help with axle number

    I have searched high and low and I can not, for the life of me figure out what gear ration this stamping indicates. Best I can get is: AN 080W82 This is in a 1978 GMC Jimmy 4wd, 350, Auto The RPO list in the glovebox was not helpful. Also, it has an RPO of MX1. If I follow that means...
  2. M

    Here from Ohio

    Morning. Been reading the forum trying to answer the 1000 questions running through my head. I have gone down down so many rabbit holes, lol. Living in Central Ohio and I have a question. I have the opportunity to buy a 1978 GMC Jimmy, 4wd, auto. Has a locked up 350 in it now. I was...

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