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swapping diffrentials

Discussion in 'Chevy Trucks' started by kgorodeo, Apr 18, 2002.

  1. kgorodeo

    kgorodeo Junior Member
    Messages: 3

    i recently bougt a 77 gmc k15. everyone says to swithc the rear and front axles cause it has a gm 12 bolt in rear. if im right all i need to do is find a 3/4 ton set of axles and install them? or is their more involved? can someone please help me out here with some info. thanks
  2. MTCK

    MTCK Senior Member
    Messages: 346

    What are you going to use the truck for? A 12 bolt isn't bad. Only reason you would need more axle under the truck is for bigger tires, horsepower, and plans to abuse it.

  3. kgorodeo

    kgorodeo Junior Member
    Messages: 3

    it has a 350 with a manual tranny, it also has 35x12.50-15's under it. if i keep the 12 bolt should i change the ring and pinion gears in it?
  4. Power mad

    Power mad Member
    from Oregon
    Messages: 75