Shackle: Specifications
| Super Duty F-250,F350 Wide Frame | Rear shackle-to-frame mounted bracket nut and bolt | 185 ft. lbs. |
| Super Duty F-350 Narrow Frame | Rear shackle-to-frame mounted bracket nut and bolt | 166 ft. lbs. |
| Super Duty F-250,F350 Wide Frame | Rear shackle-to-frame mounted bracket nut and bolt | 185 ft. lbs. |
| Super Duty F-350 Narrow Frame | Rear shackle-to-frame mounted bracket nut and bolt | 166 ft. lbs. |