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Stock '81-'91 K-series owners

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by dyeager535, Aug 16, 2001.

  1. dyeager535

    dyeager535 1 ton status Premium Member

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    Stock \'81-\'91 K-series owners

    Would one or a few of you be kind enough to do me a favor? I need to know the height on flat ground, from the ground to the top of both front and rear bumpers. Checked the service manual, no mention of the various body height's there. Larger tires are ok, (nned to know size) but lift (body or spring) kits are a no go.

    Preferably 1/2 tank of gas, vehicle unloaded of cargo.

    Problem is my truck sags in the rear, and I checked some military 5/4 ton and Blazers this weekend (unloaded and even loaded on the 5/4 ton)...I've discovered that apparently, the ONLY equal measurement front to rear is the bumper height. The body line is slightly slanted rear to front, and the front wheel well is somewhere on the order of 1/2-1" taller in the front than the rear.

    I'm trying to make my truck sit level, but I need to verify that right around 30" top bumper height is close to stock. (that was with 31" tires, 235's would be a bit shorter) I've got something on the order of 2" of sag in the rear unloaded, but even my left/right front springs aren't even, so I am going to have to get all 4 of them adjusted, when I can figure out the right height to start at.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     
  2. DMK

    DMK 1/2 ton status

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    Re: Stock \'81-\'91 K-series owners

    The bumper in back is lower than the front. The best place to measure is from the bottom of the rocker panel. A factory shop manual should have ride heights and were to measure. Alos check for wore out body mounts.
     
  3. shane

    shane 1/2 ton status

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    Re: Stock \'81-\'91 K-series owners

    toss a level in the back of your blazer and jack it up until it's level. Subtract the higher hight from the relaxed hight and you`ll know how high you have to go.

    Shane

    Never argue with idiots; They will drag you down to their level and beat you up with experience [​IMG]
     
  4. jms

    jms 1/2 ton status Author

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    Re: Stock \'81-\'91 K-series owners

    Dorian,
    here are some measurements for you, truck ('85, no lift currently) level in garage, 3/4 tank, no back seat but spare, toolbox, extra fluids (8 q oil, 2 gal tranny fluid, 1 gal coolant, 3 q gear oil), drinking water (6 liters), hi-lft, shovel.
    tires 33 10.5x15, static loaded radius front 15 1/4; rear 15 1/2;
    front bumper: right 28/3/8; left 28 1/2;
    rear bumper: right 30 3/8; left side bent [​IMG]
    rear trim, lower border: right 32; left 31 3/4;
    front rocker, at door: right 18 1/2; left 18 1/4;
    rear rocker, 2 inch from wheelwell: right 19 5/8; left 19 1/4;
    looks like my truck measures consistently lower on the driver's side - seems to make sense to me.

    <a target="_blank" href=http://desertrider.net>http://desertrider.net</a>
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: Stock \'81-\'91 K-series owners

    Unless they made a stand alone body manual, the '82 Service manual does not have body height measurements, only frame heights for bent frame testing. : (

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: Stock \'81-\'91 K-series owners

    That would be fine, except I don't want to jack it up too much higher than stock, nor make it lower than stock, which is likely what would happen since my springs are so saggy. And if you never tried to use a level for side to side on a Blazer, you have no idea how futile that is...frame is the only place worth attempting to measure, and that would be with the body off, so as not to distort the frame.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: Stock \'81-\'91 K-series owners

    Really appreciate it! That should get me started! : )



    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     

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