Overview
The Fabtech FTSBK43 is a 4 inch rear lift block for trucks, part number FTSBK43. It is aimed at drivers who want a low-cost way to add rear height, and Fabtech makes lift blocks in many sizes.
This block is universal fit, so it is not tied to a specific year, make or model. Check sizing and mounting against your own truck before you install it.
Key features
- Rear lift block with 4 inch lift height
- Universal fit, as stated by Fabtech
- Simple lift option for trucks, per the brand
- Fabtech part number FTSBK43
Checking rear height gain
Four inches of rear lift changes the geometry of the rear axle more than a small block would. The pinion angle moves, the driveshaft works through a different arc, and the suspension geometry shifts. Measuring the rear height before and after the change gives a clear picture of how much the rear has moved. Keep the original measurements noted for later reference.
Four inches also affects the room around the tires and fenders. Check for rubbing at full compression and confirm that brake lines and shock mounts have enough room. Recheck fasteners after the first trips, and have driveline angles reviewed if the truck vibrates or the ride feels different.
- Measure rear height before and after
- Check driveline angles for vibration
- Look for tire rubbing at full compression
Specifications
| Brand | Fabtech |
|---|---|
| Part number | FTSBK43 |
| UPC | 674866034129 |
| Lift height | 4 inches |
| Fitment | Universal fit |
Vehicle fitment
No vehicle is named for this block. Because Fabtech classes it as universal fit, it is not matched to a particular model, and sizing still depends on your truck.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
This is a 4 inch rear lift block. Look over the package contents against your installation before you begin.
