UMI Performance Single Adjustable Lower Control Arms Black (1014-B) - 1999-2004 Ford Mustang
Improve rear suspension control, traction, and handling in your 1999-2004 Ford Mustang with the UMI Performance Single Adjustable Lower Control Arms. Designed as heavy-duty direct replacements for the weak factory stamped steel control arms and soft rubber bushings, these tubular lower control arms help minimize wheel hop, improve cornering performance, lower elapsed times, and deliver greater consistency in motorsports applications.
UMI combines strong 1.500-inch OD x 0.120-inch wall DOM mild steel tubing with a 4130 chrome-moly threaded tube adapter, polyurethane bushings, and a premium QA1 Teflon/Kevlar-lined spherical rod end. The result is an adjustable rear suspension upgrade designed to provide increased rigidity while allowing smooth, bind-free suspension movement for street, drag racing, and autocross applications.
Single Adjustable Design
The 1014-B lower control arms feature an adjustable design utilizing a high-quality QA1 spherical rod end. This allows suspension adjustments to be made while providing precise control of the rear axle and reducing the unwanted movement associated with the factory rubber-bushed control arms.
The QA1 3/4-inch hard chrome-plated rod end uses a Teflon/Kevlar self-lubricating race liner for quiet, smooth, and bind-free operation. This combination makes the control arms well suited for performance Mustangs that see both street and motorsports use.
Improved Traction and Reduced Wheel Hop
The factory Mustang rear lower control arms are constructed from stamped steel and use soft rubber bushings. Under acceleration and cornering loads, the stamped arms can flex while the rubber bushings allow excessive rear axle movement. This unwanted movement can contribute to wheel hop, inconsistent launches, reduced traction, and less precise handling.
UMI replaces the factory design with rigid tubular construction, polyurethane bushings, and a spherical bearing. The stronger assembly helps control rear axle movement and transfer power to the pavement more effectively, improving traction, reliability, durability, and overall suspension response.
Bind-Free Suspension Movement
The spherical rod end allows the rear suspension to articulate without the binding that can occur with more restrictive bushing arrangements. Maintaining smooth suspension movement is especially beneficial for vehicles used in drag racing, autocross, and other performance driving environments where predictable rear suspension behavior is important.
At the chassis side, polyurethane bushings provide a combination of increased control and street-friendly operation. This arrangement allows UMI to increase suspension rigidity while maintaining quieter and more comfortable operation than a completely solid-mounted control arm.
Heavy-Duty DOM Steel Construction
Each control arm is constructed from 1.500-inch OD x 0.120-inch wall DOM mild steel tubing for significantly greater strength and rigidity than the factory stamped steel design. A 4130 chrome-moly threaded tube adapter provides a strong foundation for the adjustable rod end.
The complete control arm assembly is CNC machined where required and fully TIG welded for strength and consistency. This heavy-duty construction is designed to withstand the increased loads generated by high-performance street, drag racing, and autocross applications.
QA1 Teflon/Kevlar-Lined Spherical Rod Ends
UMI equips the control arms with QA1 3/4-inch hard chrome-plated spherical race rod ends featuring a Teflon/Kevlar self-lubricating liner. These premium rod ends provide precise suspension movement while promoting quiet, bind-free operation and long-term durability.
Polyurethane Bushings and Greaseable Design
High-quality fluted polyurethane bushings replace the soft factory rubber bushings to reduce unwanted deflection and improve rear axle control. The bushings are paired with CNC-machined 6061 aluminum step bushings and zinc-plated steel sleeves for a durable mounting arrangement.
On-car greaseable zerk fittings provide convenient access for bushing lubrication and routine maintenance without requiring removal of the control arms from the vehicle.
Reinforced Spring Perches and Sway Bar Mounts
The UMI lower control arms feature reinforced spring perches along with heavy-duty sway bar mounting points. These areas are designed to provide the strength needed for performance suspension use while maintaining compatibility with the Mustang's factory-style rear suspension arrangement.
Direct Bolt-On Installation
The 1014-B lower control arms bolt directly to the factory rear axle housing and use the OEM mounting hardware. This direct replacement design allows the factory stamped control arms to be upgraded without requiring extensive modification to the rear suspension.
Complete Rear Suspension Upgrade Options
For Mustang owners looking to upgrade both the upper and lower rear control arms, UMI recommends pairing the 1014 lower control arm kit with UMI part number 1016. Together, these components create UMI's 101416 rear suspension combination, which includes both lower and upper control arm kits for a more comprehensive approach to improving rear suspension traction and handling.
Features
- Single adjustable rear lower control arms
- Direct replacement for weak factory stamped steel lower control arms
- Designed to improve rear suspension handling and traction
- Helps minimize wheel hop
- Can improve cornering performance
- Designed to help lower elapsed times and improve motorsports consistency
- Spherical rod end provides smooth, bind-free suspension movement
- Suitable for street, drag racing, and autocross applications
- Constructed from 1.500-inch OD x 0.120-inch wall DOM mild steel tubing
- 4130 chrome-moly threaded tube adapter
- QA1 3/4-inch hard chrome-plated spherical race rod end
- Teflon/Kevlar self-lubricating rod end liner
- Fully TIG welded construction
- CNC-machined 6061 aluminum step bushings
- Zinc-plated steel sleeves
- Fluted polyurethane greaseable bushings
- Polyurethane chassis-side control arm bushings provide increased control with quiet operation
- On-car greaseable zerk fittings simplify bushing maintenance
- Reinforced spring perches
- Heavy-duty sway bar mounting points
- Bolts to the factory rear axle housing
- Uses OEM mounting hardware
- Black finish
- Can be paired with UMI part number 1016 upper control arms
- UMI 1014 and 1016 combine to create the 101416 upper and lower control arm package
Fitment
- 1999 Ford Mustang, excluding Cobra
- 2000 Ford Mustang, excluding Cobra
- 2001 Ford Mustang, excluding Cobra
- 2002 Ford Mustang, excluding Cobra
- 2003 Ford Mustang, excluding Cobra
- 2004 Ford Mustang, excluding Cobra
Fitment Note: Will not fit 1999-2004 Ford Mustang Cobra models.
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