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Axles, lift and wheels

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by tch777, Sep 23, 2005.

  1. tch777

    tch777 1/2 ton status

    Jan 15, 2003
    Likes Received:
    Colorado Springs, CO
    So I am going to run 35s on the Sub. Right now I run 33s.
    I have 4.56 gears in the 10 bolts.
    This is a daily driver, dirt road cruiser, mild 4x4 trail runner.
    We might tow a trailer with 2 atvs on it once in awhile.

    So next year I am going to a 16 or 17 inch rim and 35 inch tires.
    For what I do with this rig is there any reason to upgrade the axles?
    I was thinking that if anything I cound get by with putting a 14 bolt SF in the rear and leave the front alone. Then I can just get new 6 lug rims and not have to worry about rims if I upgrade axles.

    Also if I put in a 4 inch all spring lift on the 10 bolts will a 14 bolt SF swap right in and use the same springs?


  2. smokkey1

    smokkey1 1/2 ton status

    Jan 7, 2004
    Likes Received:
    Los Angeles, CA
    well for a heavy suburban I would swap in a 14sf or 14ff for extra beef! espically if your going to be towing and running 35's

    as for the springs they will fit, you'll just need to get bigger ubolts.
  3. mouse

    mouse 1/2 ton status

    Nov 10, 2003
    Likes Received:
    Great Falls Mt
    I agree. If you're going to tow with the 35's, upgrade to a 14BFF (easy to find). For wheeling, the front 10 bolt should be fine as long as you keep it open and don't like the skinny pedal too much.

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