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  1. G

    Ring & pinion upgrade

    Just a update I took your advice. I had a shop do the upgrade. And I was able to get it all done for 900.00. with a year warranty.
  2. G

    Ring & pinion upgrade

    Okay I want to go another direction I have a 3.31 ratio 9.75 my tag reads S930J I want to change to a 3.73 on the tag it reads S935M. What does the last letter stand for.
  3. G

    Ring & pinion upgrade

    Good info not what I wanted to hear, but what I needed to know. I do not want to be stranded on the side of the road with my better half looking at.me.
  4. G

    Ring & pinion upgrade

    I have 150,000 miles on it And never had any problems knock on metal. It just wont quit and l really would like to do the upgrade. If possable, I was a mechanic in the service for many years. I have replaced axle bearings but have never tore into axle gearing.
  5. G

    Ring & pinion upgrade

    Thank you for the info.
  6. G

    Ring & pinion upgrade

    I have a 1999 4x4 exped 5.4 with 9.75 and 3.31 ratio. I am wanting to change to 3.73 due to pulling a travel trailer. Do I need to change front ratio too.

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