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How to tell how much lift a vehicle has?

Discussion in 'The Garage' started by cj7jeep81, Jan 23, 2004.

  1. cj7jeep81

    cj7jeep81 1/2 ton status

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    I bought a '79 K20 yesterday, and am trying to figure out how much lift it has. The previous owner bought it with the lift, and doesn't know. It clears 40" gumbo mudders (roughly 36"-37" actual height), and doesn't have a body lift or fender trimming.
    There aren't any labels or part numbers on the springs, but there are part numbers on the shocks, and I don't know the manufacturer of the lift.
    Anyone have any ideas on how I can figure this out?
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    If you have anyone in town with a stock blazer/suburban/p/u, measure their truck from top of inner fenderwell to top of axle,then measure your. Should give you a rough idea as too how much lift you got. Deduct a little bit to compensate for springs sagging depending on age pf springs. Hope that helps. I'd measure mine for you but I can't leave work right now. /forums/images/graemlins/k5.gif
     
  3. cj7jeep81

    cj7jeep81 1/2 ton status

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    I have a '78 stock K10 that I checked, but wasn't sure if that would be accurate. I'll check that again tonight.
     
  4. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    It's probably a 12 inch kit if it clears without cutting. Big lifts are hard to tell sometimes but shorter lifts are very easy to identify.
     
  5. cj7jeep81

    cj7jeep81 1/2 ton status

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    I measured my two trucks at lunch. Stock K10 ~ 12.5", lifted K20 ~ 22". I'm guessing 10", unless my old springs are sagging about 2.5".
     
  6. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    not a scientific method, but you could snap a pic of the rig and post it, Im sure peeps who have a similar configuration would recognize it with some degree of accuracy.

    j
     
  7. cj7jeep81

    cj7jeep81 1/2 ton status

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    I have a pic, but nowhere to host it.
     
  8. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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  9. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    Why dont you just measure the arc of the springs? Put a yard stick, or equalivent, from one end of the spring to the other, and measure from the bottom of the pack to the stick, that should give you a better idea.
     
  10. Triaged

    Triaged 1/2 ton status

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    If search was working I would give you a link to a post made by Stephen Watson on the subject. It has a bunch of measurements from alot of different trucks. When it gets back to working you should try and find it and post up your lif measurements.
     
  11. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    [ QUOTE ]
    not a scientific method, but you could snap a pic of the rig and post it, Im sure peeps who have a similar configuration would recognize it with some degree of accuracy.

    j

    [/ QUOTE ]
    Good idea! We have pretty sharp eyes. /forums/images/graemlins/wink.gif /forums/images/graemlins/thumb.gif
     
  12. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    ok, here's his truck... [​IMG]
     
  13. CHEVY 4WD

    CHEVY 4WD 1/2 ton status

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    im guessing 10" does it have springs in the rear too... If its got blocks just measure the block /forums/images/graemlins/eek.gif
    BTW looksl like a pretty nice truck /forums/images/graemlins/thumb.gif
     
  14. RATAH

    RATAH 1/2 ton status

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    Nice ride
     
  15. Chase

    Chase Registered Member

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    I amn pretty sure thats a ten because with 12" you can clear 42" because thats my buddies old setup.Looks good what drivetrain and axels are under it?
     
  16. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    yeppers, I'm thinkin' 10" also...

    j
     
  17. Jonny-K5

    Jonny-K5 1/2 ton status

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    i vote for 10" too, nice truck /forums/images/graemlins/thumb.gif
     
  18. cj7jeep81

    cj7jeep81 1/2 ton status

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    Thanks for all the replies. It probably is a 10". I am going to do the yardstick measuring tomorrow.
    Its a K20, with a 14 bolt in the rear, and I'm not sure on the front. I'll have to get pics of a 10 bolt and a 44 and compare them.
    The truck is in surprisingly good shape. Couple spots of rust, but not too bad. The frame is nearly perfect. It has blocks in the rear, but not too tall (I didn't measure, but they looked to be about 4"). I figure it was a pretty good deal for $1,350.
     
  19. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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  20. Sandman

    Sandman 3/4 ton status Author

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    I think you got a hell of a deal. /forums/images/graemlins/grin.gif
     

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