Pedders AHC Suspension Conversion Kit Heavy Duty Load Carrying & Towing Toyota LandCruiser Amazon / 100 Series, 4.7 V8

This suspension conversion kit replaces the original hydraulic AHC system on Toyota LandCruiser 100 Series with traditional coil springs and torsion bars. It is designed for owners needing improved reliability and enhanced load carrying and towing capacity.

Key Features

• Complete kit to eliminate AHC system
• Ideal for towing and heavy load applications
• Improves reliability and simplifies maintenance
• Designed and tuned as a fully integrated suspension system
• Available in multiple variants to suit different uses
• Backed by a 2-Year / 25,000-Mile Warranty

Product Overview

This kit replaces the factory Automatic Height Control hydraulic system, which uses fluid and pressure spheres to manage ride height and comfort. Over time, the original system can develop costly faults. The Pedders conversion utilises front torsion bars, reinforced mounting plates, and rear coil springs to provide a dependable, traditional suspension setup specifically engineered for the FZJ & UZJ100 IFS platform.

The heavy-duty version (Kit 803066) includes rear shocks tuned for load control, suited to towing and carrying heavy weights, though ride comfort may feel firmer when unladen. An upgraded variant (Kit 803071) adds rear spring lift (~2 inches) for those requiring additional clearance during heavy-duty use. The kit is compatible with all wheel sizes, with vehicle height measured on 16-inch wheels for reference.

Technology & Materials

This conversion uses traditional coil spring and torsion bar suspension components combined with shock absorbers selected for heavy-duty load handling. Reinforced torsion bar mounting plates ensure durability and long-term reliability under demanding conditions. The kit avoids complex hydraulic systems for a simpler, more maintainable design optimised for load carrying and towing.

Installation & Compatibility

The kit includes front torsion bars, rear coil springs, mounting plates, and shock absorbers all designed for bolt-in installation on Toyota LandCruiser 100 Series (FZJ & UZJ100 IFS). Instructions to deactivate the original AHC system are provided to prevent warning lights. A professional wheel alignment is recommended after installation to optimise handling and tyre wear.

This kit is engineered for heavy-duty towing and load carrying rather than focusing solely on ride comfort.

Technical Specification

• Front height: Adjustable
• Rear height: Approximately 805mm (measured with 16" wheels)
• Includes front torsion bars, reinforced mounting plates, rear coil springs, front and rear shocks
• Includes instructions to deactivate the Toyota AHC system
• Fits Toyota LandCruiser 100 Series (FZJ & UZJ100 IFS platform)

Ride height may vary depending on wheel size and accessories. Alternative spring rates may be required for custom loads or fitments.

Why Choose This Kit

• Replaces complex, failure-prone hydraulic AHC with proven traditional suspension
• Designed and tuned as a complete, matched system for reliability and load capacity
• Includes necessary hardware and detailed instructions for straightforward installation
• Supported by a 2-Year / 25,000-Mile warranty for peace of mind