KRYPTONITE UPPER CONTROL ARM KIT 2011-2019 The Derringer utilizes key engine

The Derringer utilizes key engine and transmission parameters to enhance shift performance and improve the life of your transmission

to handle your larger hauls

even when parked on unlevel sites

This kit also comes in a King Shocks coilover and rear reservoir shock option (K166KG)

Boost and Fuel by Gear – Gear based calibration allows for optimum traction and performance

KRYPTONITE UPPER CONTROL ARM KIT 2011-2019 The Derringer utilizes key engineKryptonite Upper Control arms are made from laser cut steel, then machine formed and precision welded for ultimate strength. Our control arms are built 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. 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