Kryptonite Shock Extension Kit 11-26 GM 2500HD/3500 CMNS-3923129 you'll probably want to replace

you'll probably want to replace the lowers while you're at it

This is a direct fit Cometic gasket and will seal your oil pan the right way stopping those annoying oil leaks

When lifting your truck

Supports up to 300 lb Frame mounts under the rear bumper so it works even with an open tailgate or when towing

Kryptonite Shock Extension Kit 11-26 GM 2500HD/3500 CMNS-3923129 you'll probably want to replaceThe factory location of the upper shocks on your GM 2500HD 3500 limits the amount of down travel of your front suspension. This can be fixed with the simple installation of the Kryptonite Shock Extension Kit. This kit allows you to extend your factory length shocks to allow your suspension to achieve the full amount of down travel available. NOTE: Will NOT fit on 2024+ AT4X & ZR2 trucks equipped with DSSV shocks.