Camburg 21-25 Ford Bronco L/T Front Slapper Bump Stop Kit w/ 2.5 Bumps

Slapper-Arm Bump Stop Engineering That Controls the Bronco Through Big Hits

The Camburg CAM-110246-4 front slapper bump stop kit is built for 2021-2025 Ford Bronco long-travel suspension builds. Standard bump stops mount directly under the lower control arm, which creates an inefficient leverage geometry that forces you to choose between a firm ride that handles big hits or a soft ride that bottoms easily through smaller stuff. The slapper arm design changes that equation by positioning the bump stop strike point further outboard on the lower arm, maintaining a consistent motion ratio through the full bump travel zone. The result is a suspension that stays active and plush through the ride range and only engages the bump stop progressively as the wheel approaches full compression. No wallowing, no bottoming, no abrupt transitions.

Each slapper arm is CNC machined from 6061 billet aluminum and Type III hard anodized black. The arms pivot on bearing bronze bushings and are mounted using aircraft AN bolts that match the grip and shoulder length needed for proper joint strength under off-road loads. The Camburg KINETIK 2.5x2-inch bump stops are included and function more like an air shock than a traditional rubber stop, building resistance progressively rather than hitting a hard wall. A custom rubber pad on the slapper arm contact surface reduces noise on contact. Bump stop mounts come raw (unfinished) and need to be welded to the chassis. Camburg recommends spraying with black Steel-IT after welding for corrosion protection.

CAM-110246-4 Key Features

• Slapper arm design: strike point is further outboard on the lower arm for consistent motion ratio and better bump stop efficiency
• Camburg KINETIK 2.5x2-inch slapper bump stops included: progressive resistance, not a hard stop
• CNC machined slapper arms from 6061 billet aluminum, Type III hard anodized black
• Bearing bronze pivot bushings for smooth, durable arm articulation
• Custom rubber contact pad on arm reduces impact noise
• Aircraft AN hardware (proper grip and shoulder length for maximum strength)
• Driver-side and passenger-side upper mounts included
• Mounts come raw for welding to chassis (Camburg recommends Steel-IT coating after welding)
• Pairs with Camburg long-travel kit (CAM-110246 series) for complete front suspension build
• Made in the USA

Product Specifications

What Is Included

• 2x CNC billet slapper arms (driver and passenger, black anodized)
• 2x Camburg KINETIK 2.5x2-inch slapper bump stops
• 1x Driver-side upper mount (raw, requires welding)
• 1x Passenger-side upper mount (raw, requires welding)
• Aircraft AN hardware kit

Coilovers, long-travel lower arms, and upper control arms are sold separately. Welding of chassis mounts and professional installation are required.

Vehicle Fitment

This kit is designed for use with Camburg long-travel suspension systems for the Ford Bronco. It is not intended as a stock-height add-on and requires the Camburg long-travel lower arm (CAM-110246 series) for correct geometry.

Frequently Asked Questions

Q: What is the advantage of a slapper arm bump stop setup over a traditional straight mount?

A: A traditional bump stop mounts directly beneath the lower control arm, which means the leverage geometry changes as the arm cycles. The slapper arm keeps the contact point further outboard and maintains a more consistent motion ratio, so the bump stop works predictably across the full travel range rather than spiking hard at a single point.

Q: Do the mounts require welding?

A: Yes. The upper bump stop mounts in the CAM-110246-4 kit are supplied raw and must be welded to the chassis. This is a professional fabrication step. Camburg recommends coating the welded mounts with black Steel-IT spray after welding for corrosion protection.

Q: Will this kit work on a stock-height Bronco?

A: This kit is designed for use with Camburg long-travel suspension builds. It is not intended for stock-height Broncos and requires the Camburg long-travel lower control arms (CAM-110246 series) for correct geometry and mounting position.

Q: What makes the KINETIK 2.5 bump stops different from rubber stops?

A: The Camburg KINETIK 2.5 x 2 slapper bump stops use a progressive resistance design that builds force gradually as the suspension compresses, similar to an air shock. Traditional rubber bump stops hit hard and abruptly. The progressive design allows a more comfortable ride in the normal suspension range while still providing firm bottoming resistance when needed.

Q: Can I run this kit with Bronco Raptor upper control arms?

A: Yes. The CAM-110246-4 slapper bump stop kit pairs directly with the Camburg Bronco Raptor upper control arms (CAM-110257-GRY) for a complete front suspension upgrade.

Q: What is the warranty on the Camburg CAM-110246-4?

A: Camburg Engineering covers their products under a standard limited manufacturer warranty against defects in materials and workmanship. Contact Camburg directly for warranty claim procedures.

Q: What size bump stops are included?

A: The kit includes two Camburg KINETIK Series 2.5-inch diameter by 2-inch length bump stops. These are purpose-built slapper bump stops and are not the same as standard 2.5-inch coilover bump stops.

Q: Is professional installation required?

A: Yes. The chassis mount welding step requires a MIG or TIG welder and professional fabrication experience. Camburg also recommends confirming geometry and clearances with the arms installed before final welding to ensure correct bump stop contact position.

Installation Overview

Professional fabrication and installation required. A front-end alignment is recommended after completing the full suspension build.

1. Install the Camburg long-travel lower control arms and upper control arms to establish the correct suspension geometry.
2. With the suspension at ride height and correctly positioned, mock up the driver-side and passenger-side upper bump stop mounts to the chassis. Verify the slapper arm contact angle and position relative to the lower arm.
3. Tack weld the mounts in position and recheck alignment and contact geometry before final welding.
4. Complete full weld on both mounts and allow to cool. Clean and spray with black Steel-IT for corrosion protection.
5. Install the slapper arms onto the upper mounts using the included aircraft AN bolts and bronze pivot bushings. Torque to specification.
6. Install the KINETIK 2.5 bump stops onto the slapper arms.
7. Cycle the suspension through full travel to confirm proper bump stop contact, correct contact angle, and absence of interference with other suspension components.