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Thread: DJM Suspension

  1. #1
    Join Date
    Mar 2008
    Location
    Burleson, Texas
    Posts
    389

    Thumbs down DJM Suspension

    The kit is decent but the customer service is complete junk. Next time is Belltech.

    Hi,
    I have a 2000 Silverado with your 4/6 control arm and flip kit setup. I love the way it makes the truck handle but I have a few questions. I took my truck to the track the other day for the first time and on launch, I get really bad wheelhop. I read online that this kit has an adjustable pinion angle which will probably take care of that but can you tell me how to adjust the angle or is there a way I can get a copy of the instructions either online or mailed? I can pay for postage if needed. Also, the two top plates that bolt over the leaf springs are both bent at the front, can I buy those two top plates from DJM seperately? I think that may be affecting the pinion angle too.
    Thank you for your time,
    -Evan Gray

    And here is the response:

    Hi,
    Your truck sounds messed up but wheel hop has nothing to do with pinion angle. The instructions are online, go to applications and click on the rear part #


    Wow... thanks.
    Last edited by ducky; 02-26-2010 at 04:23 PM.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.

  2. #2
    Join Date
    Jan 2009
    Location
    Augusta, Ks
    Posts
    3,246
    They are idiots. Pinion angle has everything to do with wheel hop
    2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s

    2004 Buell XB12s

    Quote Originally Posted by LamboDoNoMo View Post
    "Never give up, NEVER BACK DOWN!!!"

  3. #3
    Join Date
    Jun 2007
    Location
    maine
    Posts
    1,458
    WOW that is terrible... i dont believe i will be buying their kits. i was going to go with mcgaughtys. hope you get it figured out.
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  4. #4
    Join Date
    Mar 2008
    Location
    Burleson, Texas
    Posts
    389
    It really seems like they just went to the local ricer meeting and hired the tech guy from there. Along with that, the bump stops on the notches are too small and the differential hits the bed before the bump stops do anything. It's an easy fix but you would think that with a $700 kit they could figure out the bump stop height. Not meaning to bitch too much, I just want you guys to know what a bunch of idiots work there.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.

  5. #5
    Join Date
    Mar 2009
    Location
    Wichita Falls, TX
    Posts
    2,172
    I have the same wheel hop issue, carrier lift didn't correct it so it's time to adjust the pinion angle. my diff doesnt hit the bed though.
    2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
    2002 black Yukon SLT (the skinny sister)
    1969 green Pontiac GTO (Layla, AKA the black sheep)

    INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
    Sticky/broken gauges? I can help. PM me for details.

  6. #6
    Join Date
    Sep 2004
    Location
    Breaux Bridge, LA
    Posts
    667
    are you still running the overload spring? if not you will get lots of wheel hop. you will need shims to get the pinion angle right. $700 is a lot. just paid mine under $500 a month a go.

    11' Sierra 6.2 NHT
    14.46@91 Stock
    89' Mustang LSX
    10.35@130 pump gas LQ4

    Knothead Racing

  7. #7
    Join Date
    Mar 2008
    Location
    Burleson, Texas
    Posts
    389
    Yeah I still have the overload springs, with some bump stops on the front of them. It worked great on a stock height suspension. I need to get some time to work on pinion angle.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.

  8. #8
    Join Date
    Mar 2008
    Location
    Burleson, Texas
    Posts
    389

    Pictures

    Well, here is the pinion angle how it is right now. I may be wrong, but shouldn't it angle down slightly, like a degree or two?


    And here are the plates:



    I tried to loosen everything up, angle to differential down a little, and snug everything up with new brackets but the adjustable part is as far as it will go without grinding and re welding brackets. At least I know for sure what's causing the hop now.
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.

  9. #9
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    wow, thats terrible. yeah, a degree or two from the driveshaft would be better than up 10 degrees.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  10. #10
    I would have a pro like DBRods look at it. I think the plate is overtightened. Which bent it. Also something just doesnt look right to me there. I am not a pro suspension guy at all though. It may be that DJM does to much ricer stuff therefore is weak sauce.
    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.

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