Kryptonite Upper Control Arms, 2001-2010 LB7/LLY/LBZ/LMM

Part# KRUCA10

$569.99 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2001 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM Duramax Diesel and 2002-2009 Hummer H2

Kryptonite upper control arms are laser cut and welded into an extremely strong boxed design. Made with pride here in small town USA and backed with a lifetime warranty. Kryptonite UCA kits will improve the ride of any leveled or lifted GM 2500-3500 HD truck, but are also a great upgrade for your stock height truck. Kryptonite UCA's are compatible with any stock or leveled 2500-3500 HD and most suspension lift kits.

Kit Includes:
  • 1 x Kryptonite Upper Control Arm Pair
  • 4 x Control Arm Sleeves
  • 8 x Control Arm Bushings
  • 2 x Bump Stops
  • 2 x Kryptonite Bolt On Upper Ball Joints
  • 1 x Hardware package

    Optional Parts:

    Installation Notes:

    • Mount upper ball joints using supplied 5/16” bolts, flat washers, and locknuts. Mount the ball joint to the bottom of the control arm if your truck is adjusted above stock height. Mount the ball joint down through the top of the control arm if your truck is stock height, or if you have a 4” and up lift kit and are keeping torsion keys relaxed and control arm is flat.


    • (Kryptonite No Fine Print Lifetime warranty)-Kryptonite steering and suspension components are warrantied for life to their original purchaser. This warranty is against any manufacturer defects, premature wear or breakage. Race it, jump it, off road it, sled pull it, wreck it, lift it, level it, lower it, I think you get it? We don’t care. If you can break it we will replace it. Kryptonite products must be purchased from an authorized dealer.


    Customer Reviews

    Based on 7 reviews Write a review

    Customer Reviews

    Based on 8 reviews
    Sal Ramos III
    Massively tightened up my front end

    I have a ‘03 LB7 with a 8” lift, made my truck feel much tighter than before. Great buy for my old truck


    Amazing ride improvement after installing these UCA\'s. Very easy install. The improved ball joint angle is extremely noticeable. Just another top notch product that you should not hesitate to put on your rig. You won\'t be disappointed.

    Josh Bunch

    Look great! Fit great! Much improved ball joint angle. It took longer to assemble to control arms, than it did to install them.

    Jason Gross

    Heavy duty. Good looking. Work great!


    I installed these and king oem performance shocks with adjusters on a leveled 2500hd ,and what a difference.My lbz has 420000 miles on it,and i forgot how good it can ride.very easy to install.The bolt on ball joint is a plus.