UMI Performance Upper and Lower Rear Control Arm Kit Red (101416R) - 1999-2004 Ford Mustang
Upgrade the complete rear control arm system on your 1999-2004 Ford Mustang with the UMI Performance Upper and Lower Rear Control Arm Kit. This comprehensive package combines UMI's adjustable lower control arms with fixed-length, non-adjustable upper control arms to replace the weak factory stamped steel arms and soft rubber bushings with a stronger, performance-focused suspension setup.
Designed to minimize wheel hop, improve cornering, help lower elapsed times, and increase consistency at the track, the 101416R kit strengthens rear axle control without sacrificing street-friendly operation. Heavy-duty DOM steel construction, polyurethane bushings, spherical rod ends, reinforced spring perches, and greaseable components combine to create a durable bolt-on suspension upgrade for performance-oriented Mustangs.
Complete Upper and Lower Control Arm Package
Rather than upgrading only one portion of the rear suspension, the UMI 101416R package includes both upper and lower rear control arms. The kit combines a set of adjustable lower control arms with fixed-length, non-adjustable upper control arms for a more complete approach to controlling rear axle movement.
Replacing the factory control arms and rubber bushings helps reduce unwanted suspension deflection, allowing the rear axle to remain more controlled during acceleration, cornering, and other high-load driving conditions.
Adjustable Lower Control Arms
The included lower control arms feature an adjustable design that utilizes high-quality Teflon-lined spherical rod ends. The spherical rod end arrangement provides smooth, bind-free suspension movement while allowing adjustments to be made as needed for the vehicle's setup.
This design helps provide more precise rear suspension operation for street, drag racing, and other performance applications where consistent axle control and predictable suspension movement are important.
Fixed-Length Upper Control Arms
UMI pairs the adjustable lower arms with a set of fixed-length, non-adjustable upper control arms. The upper arms feature mild steel mounting points, strong DOM steel tubing, and polyurethane bushings to replace the less rigid factory components.
Together, the upper and lower control arms provide increased rigidity throughout the Mustang's rear control arm system while retaining polyurethane bushings to help maintain quieter, more comfortable operation.
Improved Traction and Reduced Wheel Hop
The factory rear control arm system can allow unwanted axle movement as the stamped steel arms and soft rubber bushings flex under load. This movement can contribute to wheel hop, inconsistent launches, reduced traction, and less precise handling.
UMI's tubular control arms and upgraded bushings are designed to reduce this unwanted movement. Increased rear axle control can help the tires maintain more consistent contact with the pavement, providing improved traction during acceleration and more predictable handling through corners.
Designed for Lower ETs and Track Consistency
For drag-oriented Mustangs, improved control of the rear axle can play an important role in launch consistency. By replacing flexible factory components with stronger tubular control arms and performance bushings, the UMI kit is designed to help reduce wasted suspension movement and improve repeatability.
The result is a rear suspension setup designed to help lower elapsed times while providing more consistent performance from one pass to the next.
Heavy-Duty DOM Steel Lower Control Arms
The adjustable lower control arms are manufactured from heavy-duty DOM mild steel tubing and use a 4130 chrome-moly threaded tube adapter. The components are CNC machined and fully TIG welded to provide the strength required for demanding street and motorsports applications.
The tubular construction offers substantially greater rigidity than the factory stamped steel control arms, creating a stronger connection between the chassis and rear axle.
Bind-Free Spherical Rod End Operation
High-quality Teflon-lined spherical rod ends allow the lower control arms to move smoothly through the suspension's range of motion without unnecessary binding. This helps the rear suspension articulate properly while maintaining precise axle control.
The spherical rod end design is particularly beneficial for performance applications where suspension freedom of movement and repeatability are important.
Polyurethane Bushings for Performance and Street Manners
Both the upper and lower control arms utilize high-quality polyurethane bushings. Compared with the soft factory rubber bushings, polyurethane helps reduce unwanted deflection and improves suspension response while still providing quieter and more comfortable operation than a completely solid-mounted setup.
This combination makes the 101416R kit suitable for Mustangs that need improved rear suspension performance without giving up the usability expected from a street-driven vehicle.
Greaseable Bushings and Zinc-Plated Sleeves
The control arms feature zinc-plated steel sleeves and greaseable zerk fittings to simplify routine maintenance. The grease fittings provide convenient access for lubrication, helping owners maintain proper bushing operation without unnecessary disassembly.
Reinforced Spring Perches and Sway Bar Mounting Points
The lower control arms incorporate reinforced spring perches and heavy-duty sway bar mounting points. These strengthened areas are designed to handle the loads associated with performance suspension use while maintaining the necessary mounting provisions for the Mustang's rear suspension components.
Direct Bolt-On Installation
The UMI upper and lower rear control arms are designed as direct bolt-on replacements for the factory components. Installation requires no drilling and uses the OEM mounting hardware, helping make the upgrade straightforward without requiring permanent chassis modifications.
UMI lists an approximate installation time of one hour, making this a substantial rear suspension upgrade that can be installed without extensive fabrication or modification.
Features
- Complete upper and lower rear control arm package
- Includes a set of UMI Performance adjustable lower control arms
- Includes a set of fixed-length, non-adjustable upper control arms
- Direct replacement for factory rear control arms
- Designed to minimize wheel hop
- Improves rear axle control
- Designed to improve cornering performance
- Helps improve traction during acceleration
- Designed to help lower elapsed times
- Helps improve track consistency
- Lower control arms constructed from heavy-duty DOM mild steel tubing
- 4130 chrome-moly threaded tube adapter used in lower control arms
- CNC-machined components
- Fully TIG welded construction for strength
- High-quality Teflon-lined spherical rod ends
- Spherical rod end design provides smooth, bind-free operation
- Upper control arms feature mild steel mounting points
- Upper control arms constructed with DOM steel tubing
- High-quality polyurethane control arm bushings
- Polyurethane bushings help reduce deflection while maintaining quieter operation
- Zinc-plated steel sleeves
- Greaseable zerk fittings simplify routine maintenance
- Reinforced lower control arm spring perches
- Heavy-duty sway bar mounting points
- Easy bolt-on installation
- No drilling required
- Uses OEM mounting hardware
- Approximate installation time of 1 hour
- Red finish
Fitment
- 1999 Ford Mustang
- 2000 Ford Mustang
- 2001 Ford Mustang
- 2002 Ford Mustang
- 2003 Ford Mustang
- 2004 Ford Mustang
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