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Level Your Rear Suspension with a Precision Block Kit
The Skyjacker BUK5574 is a rear suspension block and U-bolt kit for 1965-1976 Ford F-100 and F-150 4 wheel drive trucks. It adds rear lift height while keeping the axle properly positioned under the leaf springs, and includes new U-bolts sized to safely clamp the block and axle together. This kit is a straightforward way to level a truck's stance or add clearance for larger tires.
Key Features
- Rear lift block for proper ride height
- Includes correctly sized U-bolts
- Maintains proper axle alignment under the spring pack
- Bolt-on installation with no cutting required
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1970-1976 | Ford | F-100 |
| 1977-1996 | Ford | F-150 |
Specifications
| Detail | Value |
|---|---|
| MPN | BUK5574 |
| Part Type | Block and U-bolt kit |
| Drivetrain | 4 Wheel Drive |
| Warranty | Limited Lifetime Warranty |
| Prop 65 | Yes |
What's Included
- Rear lift block
- U-bolts
- Mounting hardware
About Skyjacker
Skyjacker Suspensions has designed and manufactured off-road suspension systems in West Monroe, Louisiana since 1970. The company builds lift kits, shocks, and leaf springs for trucks, Jeeps, and SUVs, backing most systems with a Limited Lifetime Warranty for the original purchaser.
Related Parts
- Skyjacker Steering Damper Kit for Ford Bronco
- Skyjacker Suspension Lift Kit Component for Ford Bronco
FAQ
What is the BUK5574?
The BUK5574 is a Skyjacker rear block and U-bolt kit for 1965-1976 Ford F-100 and F-150 4 wheel drive trucks that adds rear lift height while keeping the axle properly aligned.Does the BUK5574 require welding?
No. The BUK5574 is a bolt-on kit that uses new U-bolts and does not require cutting or welding.How much lift does the BUK5574 add?
The BUK5574 block adds rear lift height to level the truck's stance; exact height depends on the specific block included in the kit.Does the BUK5574 include new U-bolts?
Yes. The BUK5574 includes U-bolts sized correctly for the block and axle combination.Is the BUK5574 covered by a warranty?
Yes. Skyjacker backs the BUK5574 with a Limited Lifetime Warranty against manufacturing defects.Will the BUK5574 work with my factory leaf springs?
Yes. The BUK5574 is designed to work with factory-spec leaf springs on the listed F-100 and F-150 applications.Is professional installation required for the BUK5574?
Professional installation is recommended for the BUK5574, though experienced DIY installers with a lift and torque wrench can complete it.Will installing the BUK5574 require a wheel alignment?
A wheel alignment is recommended after installing the BUK5574 since ride height and suspension geometry will change.Install Instructions
- Support the vehicle on a lift or jack stands and remove the rear wheels
- Support the rear axle and remove the factory U-bolts
- Position the Skyjacker BUK5574 block between the axle and leaf spring pack
- Install the new U-bolts and torque to factory specification
- Reinstall the wheels and lower the vehicle
- Check ride height and perform an alignment if needed
Prop 65 Warning
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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