BEL1284 / 1284 - Application Notes 90-94 C1500 Standard Cab 454SS - (4-5”, 7”) 88-98 C2500 - All (Except 8-Lug) - (4-5”, 7”) Notes: - 88-91 must use Alignment Kit #4950. - For trucks w/o O.E. front sway bar order adapter kit #5700. - Not designed for diesel applications. - 4“ Ext. Cab must use #4981. 6“ Ext. Cab must use #4985 driveline alignment kit. - It is highly recommended to use an AirJack