These Upper and Lower Ball joints fit the Rock Assault™ 9 Knuckles and Inner C’s.
2 of each are required for one front axle housing.
Also fits these other applications:
- 1999-2004, Ford F450 Super Duty 1 ½ ton
- Rock Assault™ 9 Upper Ball Joints, 300620-KIT
- Rock Assault™ 9 Lower Ball Joints, 300621-KIT