Ekstensive 88-98 CHEVY/GMC SILVERADO/SIERRA 1500 REAR AIR SUSPENSION K Installation Instruction is NOT Included Trails End Lure by Russ Carman 4 oz Cnotch Silverado Stainless Steel Rear Axle Bolt On C-Notch Brackets For Chevy GMC C Notch Kit Adds 3 of Frame Clearance. For 73-87 Chevy/GMC C10 C20 Rear Axle Bolt On C-Notch Mountng Bracket... Compatible with 88-98 GMC C1500 100% Brand New Although you can weld them up as well if you prefer. Includes 1 X Pair of C-Notch Brackets (Left & Right);1 X MountingHardware Set. Compatible with 88-98 Chevrolet C1500 1 X MountingHardware Set Fitment: Drilling & Cutting of Frame Required for Installation. Heavy Duty 3/16 Thick CNC Cut Steel Construction.