1-Inch Composite Rear Block and U-Bolt Kit — Ford F-150 2021–2026

Adjust the rear ride height of your Ford F-150 with the KINGROCK KR-2414 kit. It combines 1-inch composite suspension blocks, U-bolts and mounting hardware to change suspension height while retaining the existing leaf springs.

Each block features two locating pins to position it in compatible axle spring seats. The black finish on the blocks and U-bolts blends cleanly with the surrounding suspension components.

Features and Benefits

• 1-inch composite blocks: allow rear ride height adjustments based on the existing configuration.
• Two locating pins per block: position the block in a compatible axle spring seat.
• U-bolts and hardware included: includes four U-bolts with the nuts and washers required to secure them.
• Retains the existing leaf springs: adjusts ride height without replacing the leaf springs.
• Bolt-on installation: on compatible configurations.
• Kit for both sides: includes two blocks for the rear suspension.

Applications

Ford F-150 2021–2026 equipped with rear leaf spring suspension and a compatible dual-pin locating arrangement.

Kit Contents

• 2 composite rear suspension blocks, 1 inch tall.
• 4 U-bolts.
• 8 nuts.
• 8 flat washers.

Installation

The blocks install beneath the leaf springs, between the springs and the rear axle spring seats. The supplied U-bolts and hardware secure the assembly.

Verify proper locating pin engagement, full contact between the mounting surfaces, suitable shock length and adequate suspension clearances for the vehicle’s configuration.

Block Height and Actual Lift

The 1-inch measurement refers to the block’s height. When replacing an existing block, the change in ride height depends on the difference between the two blocks. A 1-inch block therefore does not necessarily provide 1 inch of additional lift.

KINGROCK Warranty

The KINGROCK KR-2414 kit is backed by a lifetime warranty, subject to the KINGROCK warranty policy.