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Always the correct part
Product Details
- Set of secondary leaf springs designed to work with OEM leaf springs and support extra loads
- Offer the ability to be adjusted independently to support uneven side-to-side loads
- Mounts under factory axle U-bolt plates
- Recommended for occasional towing needs such as boats or trailers
- Fitted U-bolts and related hardware are included for mounting
- Crafted from heat-treated ASTM 5160 alloy spring steel for maximum strength and resilience
- Prevents leaf spring from sagging due to sustained load compression
- Reduces leaf spring wrap up, bottoming out, and loss of cornering traction
- Helps reduce bouncing during towing
- Drilling may be required for installation
- Manufactured in the United States
Quick Specs
- Fits on top of factory spring pack, retaining factory bump stop
- Adjustable load support with no further adjustment needed after setup
- Easy installation with common hand tools, no drilling required
- Does not increase factory GVWR rating
- Made from heat-treated ASTM 5160 alloy spring steel for strength and resilience
- Spring rate becomes firmer with pressure increase
- Recommended for occasional towing (boats, trailers)
- Maintains rear ride height and prevents spring sagging
- Helps reduce bouncing during towing
- Adjustable for uneven side-to-side loads
- Includes fitted U-bolts and mounting hardware
Important Notes
- 04-08 Ford F150 Fits Vehicles Only 2WD/4WD (except Heritage Edition)
- For air bags on lifted vehicles using a non-tapered lift block, use P/N 4822 spacer for a 2" rear lift
- For air bags on lifted vehicles using a non-tapered lift block, use P/N 4824 spacer for a 4" rear lift
