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Thread: Lowering kits

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  1. #1
    Join Date
    Feb 2008
    Location
    Sonoma County, CA
    Posts
    117
    I have shackles and hangers in the rear of my truck for a 4" drop and I think it sucks. I am having to add an air lift kit just to comp for how much the lowering kit made the springs weak. Every time I hit a bump it bottoms out. I have all new springs with edelbrock IAS shocks, and no differance. On my old truck I had stock shaclkes and hangers with hotchkis 4" drop leaf springs, and I had no problems what so ever.... Just my .02 cents
    1999 GMC Sierra SLE sc sb 4.8l 4L60E, Comp 1.75 roller rockers, graniaelli maf, garneaelli wires, Aem brute force intake, BBK 80mm tb, Nelson tune, 2/4 drop, Denali rims, custom grill, Denalli guages, Edelbrock IAS shocks, Tahoe E-fans, Nelson harness, and tune, McGaughy's 2" drop spindles, New matched coil springs, Air Lift rear lowerd air bag kit, Air Lift wireless remote

    List of things to do
    4.10 gears and a new posi, Lt headers, Cam, Heads, Intake,

  2. #2
    Join Date
    May 2008
    Location
    Round Rock, TX
    Posts
    3,069
    Quote Originally Posted by 99LS1 View Post
    I have shackles and hangers in the rear of my truck for a 4" drop and I think it sucks.I am having to add an air lift kit just to comp for how much the lowering kit made the springs weak. Every time I hit a bump it bottoms out. I have all new springs with edelbrock IAS shocks, and no differance. On my old truck I had stock shaclkes and hangers with hotchkis 4" drop leaf springs, and I had no problems what so ever.... Just my .02 cents
    I am very curious as to why the lowering kit made your springs weak, the ride isn't affected when lowering the rear with a shackle and hanger. The spring rate isn't changed. Only thing that changes is the shock angle which is borderline from the factory anyway.

    Whatever kit you decide to go with, Please use drop spindles up front, it will save you money and headaches over time. Keeps you from having to deal with inner tierod failure.

  3. #3
    Join Date
    Mar 2009
    Location
    Wichita Falls, TX
    Posts
    2,172
    I have the DJM 4-6 on mine with firestone helpers in the rear and my truck rides like a dream. I just need to get my pinion angle fixed pronto. Although I may hold off on the pinion angle until its baggin' time.
    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.

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