Kryptonite Shock Extension Kit 11-26 GM 2500HD/3500 CMNS-3923129 Replace your stock drain plug

Replace your stock drain plug with this Magnetic Drain Plug to catch small debris and help extend fluid life

The wrinkle black finish adds corrosion protection and enhanced looks

King’s new line of Original equipment manufacturer

Manifold gaskets

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 Replace your stock drain plugThe 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.