Overview
The Pro Comp 62246 is a 4 inch rear lift block kit from Pro Comp Suspension for leaf spring vehicles. It raises the rear by 4 inches using two rear lift blocks clamped with U-bolts.
The lift blocks are tapered to help improve vehicle driveshaft angles. Confirm the rear axle and spring pack before ordering.
Key features
- 4 inch rear lift height
- Two rear lift blocks per kit
- Four U-bolts for mounting
- Eight thick flat washers and eight U-bolt nuts
Hardware and torque checks
Clamp hardware carries the load of the lift, so its condition matters as much as the blocks. Check that the U-bolts are straight, the threads are clean and the nuts run down easily before tightening.
Torque should be applied in steps, working across the pair so the blocks seat evenly. After the first few drives, re-check every nut, since new hardware can settle under the weight of the axle and the springs. Loose nuts are the most common early problem with rear lift parts.
Look over the leaf springs at the same time. Cracked leaves, sagging arch or worn bushings are signs the pack may need attention before a lift adds more load. Replacing worn parts at install is often simpler than doing it later.
- Check U-bolts for straightness and clean threads
- Tighten nuts in alternating steps
- Re-check nuts after the first drives
Specifications
| Brand | Pro Comp Suspension |
|---|---|
| Part number | 62246 |
| UPC | 614901022957 |
| Type | Rear lift block kit with U-bolts |
| Lift height | 4 in |
| Quantity | 2 rear lift blocks |
| Hardware | 4 U-bolts, 8 thick flat washers, 8 U-bolt nuts |
Vehicle fitment
Measure the rear axle and leaf spring pack before choosing this kit.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
Two rear lift blocks, four U-bolts, eight thick flat washers and eight U-bolt nuts.








