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Thread: 99-07 4WD Front Coilover Conversion

  1. #1
    Join Date
    Mar 2010
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    Tuscaloosa, AL
    Posts
    256

    99-07 4WD Front Coilover Conversion

    I have been making these for a while and have a lot of guys using them but realized I never posted anything about it on this forum. I figured some of you guys might be interested. I posted about this on PT, GMFS, and TYF so there have many discussions on the subject.

    performancetrucks.net
    My build first coilover thread: http://www.performancetrucks.net/for...ersion-518118/
    My purchase thread: http://www.performancetrucks.net/for...4/#post5168393
    Iregret build thread: http://www.performancetrucks.net/for...1/#post5156548
    Thread that gave me the idea and good for 2500 guys: http://www.performancetrucks.net/for...ers-hd-504605/

    tahoeyukonforum.com
    My initial thread seeking interest: http://www.tahoeyukonforum.com/forum...ad.php?t=57560
    Tahoewhat review and user guide **very detailed**: http://www.tahoeyukonforum.com/forum...ad.php?t=59830
    04blackout review and build thread: http://www.tahoeyukonforum.com/forum...ad.php?t=60498

    gmfullsize.com:
    Initial thread: http://www.gmfullsize.com/forum/showthread.php?t=274179


    They are brackets I make so you can bolt on a set of coilovers in place of the torsion bars on 99-07 gmt800 4wd trucks and 2wd/4wd suvs. I use my truck for racing and they work very well in that regard, but a lot of the tahoe guys just wanted a better ride and they work well in that too. The ride using coilovers is tremendously better, especially considering I had to use limiting straps to keep the front end under control before with the torsion bars.

    I put my write up into PDF format, but I cant upload to this site due to a size limitation so I hosted them on this site:

    http://www.mediafire.com/view/4x08ra...vers_about.pdf
    http://www.mediafire.com/view/9jcd7c...rs_install.pdf

    If you are interested in buying some send me a message and I can get you taken care of. I currently charge $180 shipped for a set of uppers or lowers with hardware, and $320 shipped for both uppers and lowers. Total cost of this swap is usually $700-$800 depending on where you buy and what parts you use. Check out the 2 PDFs above for more detail.

    Heres a couple teasers:





    Heres a street launch video,

    https://www.youtube.com/watch?v=FVop...bJz5E7-rSqcNbA

    Let me know if you have any questions!
    Last edited by Atomic; 06-11-2014 at 05:02 PM.

  2. #2
    Join Date
    Mar 2010
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    Tuscaloosa, AL
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    256
    Not a popular idea over here eh...

  3. #3
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    I'm still looking pretty heavily at this. I probably haven't looked hard enough, but have lifted guys used these at all, or are they strictly for stock height or lowered 4x4s?
    1951 3100
    1984 C10

  4. #4
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    Mar 2010
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    Tuscaloosa, AL
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    256
    A couple guys have, but this wont work with big lifts due to UCA clearance. The typical 4-6" knuckle lift is perfect.

  5. #5
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    What about guys that are only looking to go no more than 3"? Most of those kits are keys and then 2" blocks. I guess maybe a 2-3" knuckle, with your coil over, and then maybe some body lift mounts?
    1951 3100
    1984 C10

  6. #6
    Join Date
    Mar 2010
    Location
    Tuscaloosa, AL
    Posts
    256
    Well the idea is you are replacing the torsion bars with coilovers, so the advantage will be when you compare it to a torsion bar lift of the same size. Big tbar cranks ride like ass, but coilovers dont. It wont allow more lift than your front end geometry would otherwise allow with a tbar crank. Does that make sense? If you could normally get at most 4" of lift with just keys, then that is all you could get with coilovers. Body lifts could of course add more lift since that is not suspension related.

  7. #7
    Join Date
    Mar 2010
    Location
    Paris
    Posts
    305
    I saw these a while back and have really been thinking about coil over conversion to drop my Z71. But it requires $$$ which I don't have much of lol
    Truck: 05 GMC CCSB SLT Z71,
    Go Faster: 5.3, 219/227 .607/.614 112, milled heads, eBay CAI, Circle D 2800, 3030 Built 60E, E-Fans, 3030 Tuned, LT's, Spintech Muffler, DuraGrip w/ 3.73's
    Look Better: 10K HID's lows & fogs, tinted Chevy tails

  8. #8
    Join Date
    Mar 2010
    Location
    Tuscaloosa, AL
    Posts
    256
    Unfortunately that and every other fun mod does

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