Overview
The California Super Trucks 1 inch lift block kit, part number CSB-C14-7, raises the rear of a vehicle that uses leaf springs. Extended U-bolts are needed to complete the install.
It is direct fit, though no year, make or model is named. Confirm that your vehicle uses rear leaf springs and that you have extended U-bolts before installing.
Key features
- 1 inch lift for leaf spring rear suspension
- Designed for rear leaf springs
- Extended U-bolts needed
- Direct fit, per the brand
Leaf spring rear suspension
Leaf spring rear suspensions use stacked spring plates clamped to the axle, and a block kit like this one sits between the spring and the axle to raise the rear. Because the spring itself is unchanged, ride quality stays close to stock, though the rear may feel firmer under load. Leaf springs can also shift position over time, so check spring pack alignment after the first few weeks of use.
Extended U-bolts are the part most often overlooked. Measure the spring and axle dimensions before ordering, and choose U-bolts that clear the block and the axle housing with room for the nuts. Replace U-bolts that show rust, stretched threads or flattened bends, since they hold the axle in place under load.
- Check spring pack alignment
- Inspect U-bolt threads and nuts
- Recheck torque after the first drives
- Look for shackle wear on each side
Specifications
| Brand | California Super Trucks |
|---|---|
| Part number | CSB-C14-7 |
| UPC | 70000635817 |
| Lift height | 1 inch |
| Position | Rear |
| Spring type | Leaf |
| Fitment | Direct fit |
Vehicle fitment
No year, make or model is named for this kit, so no vehicles are listed. Its direct fit label refers to leaf spring rear suspensions in general.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Extended U-bolts are needed, so plan for a set sized to your axle and spring setup. Because the block raises the rear, check driveline angles after installation.
What’s included
Not included: extended U-bolts, which are needed to complete the install.







