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  1. #1
    Sr. Engineer FergusonT's Avatar
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    May 2010
    Southwest Michigan

    Default GMC S15 Sierra Classic

    So 2 days ago I am driving down some country roads and I came up on this truck for sale that looked like an older S10 or Sonoma. It had a plow on it and the body was lifted what looked like 10 or more inches. So I stopped to look at it and it ended up being an S15 Sierra Classic. Somebody had taken steel I beams and lifted the bed, I don't remember what they did to lift the cab, but the thing was hideous. Anybody know anything about these trucks. Looked like it had an 8cylinder in it, i could see the side of the engine from the wheel well and saw 4 plugs. I am tempted to put a plow on my S10 but I am tempted just to buy this, they are asking 1500. It is pretty beat up, looks like it was mainly used as just a plow truck. The rear shocks were broke off at the leaf springs, and it had leaf spring suspension in the front. They used an I beam to mount the plow hydraulic cylinder to. Just wondering if anybody has some experience with these trucks.
    1999 Chevrolet Suburban LS K1500
    1991 Chevrolet S10 4.3L 4x4
    2005 Suzuki Forenza (GM/Daewoo)

  2. #2


    Sounds like a Frankenstein SFA [solid front axle] conversion w/ a V8 added...There was a bunch of guys putting older solid front axles under S-10's for the additional articulation to do extreme 4x4. The first gen s-10 was the testbed for GM's current independent front suspension for 4x4. These guys were taking solid axle front ends from older bronco's & international scouts and putting them in place of the IFS on the s-10.

    Some of the same guys were doing alot of the V8 conversions too...

    There were also some guys w/ torch and welders and no sense too.

    There is a reason you don't see that many snow plows on S-10 trucks...I had a '62 Willys CJ5 w/ a 6 foot plow and it tore it up!

    The older first gen T-10/T-15 were called Sierra...Chevy was S-10/S-15 with the 15 designating 4x4...GMC didn't use Sonoma until sometime around '91-'92
    Last edited by wis bang; 10-06-2010 at 04:44 PM.
    Still Loyal to GM after all these years...:shocked:
    2006 Impala LT 3.5L
    2005 Silverado WT small cab/longbed 4x4 4.3L V6
    1999 Grand Am 3.4L in TX w/ our youngest
    1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
    1988 S-10 small cab/longbed HT3.4L Crate Engine
    1970 Nova 250 I-6, factory 3 sp floor shifter.
    1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.

  3. #3


    One of my friend have a GMC S15 Sierra classic he had bought it from a used truck dealer 1500 is pretty good my friend bought it from a website that deals with such stuff hope it will help you

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