BMR BK055 Rear Lower Control Arm Spherical Bearing Kit for 2015-23 Ford Mustang

Vehicle Fitment

• 2015-2023 Ford Mustang (S550 platform, rear lower control arm, RWD; includes EcoBoost, GT, GT Premium, Bullitt, Shelby GT350, Shelby GT350R, Shelby GT500, V6) *

Features

• Heavy-duty 1-inch spherical bearings replace factory rubber bushings
• Machined bearing cups for precise fitment
• CNC-machined billet aluminum spacers
• Black corrosion-resistant finish
• Minimizes rear lower control arm deflection
• Reduces wheel hop under acceleration
• Improves throttle response and traction
• Designed for street performance, drag, and handling applications

Specifications

• Part Number: BK055
• Material: Spherical bearings with aluminum spacers
• Finish: Black
• Position: Rear lower control arm (both sides)
• Drivetrain: Rear-Wheel Drive (RWD)
• Platform: S550 Mustang IRS
• Installation time: ~2-3 hours

Included Components

• 2x spherical bearings
• 4x CNC-machined spacers
• 2x machined bearing cups
• 1x hardware pack (snap rings & related hardware)

Product Description

The BMR BK055 Rear Lower Control Arm Spherical Bearing Kit is a performance suspension upgrade engineered to replace the factory rubber bushings in the rear lower control arms of 2015-2023 Ford Mustang S550 models. The stock rubber bushings are effective at absorbing noise and vibration but allow considerable deflection under hard acceleration or spirited driving, which can contribute to wheel hop and inconsistent traction. By installing heavy-duty spherical bearings with precision machined bearing cups and spacers, the BK055 nearly eliminates lower control arm movement, providing a more solid connection between the control arm and cradle.

This results in a noticeable reduction in wheel hop, improved throttle response, and increased traction - benefits appreciated by performance enthusiasts on street, drag, or handling-focused builds. Designed for easy bolt-in installation using existing mounting points, the BK055 upgrades your Mustang's rear suspension dynamics without extensive modification. Fitment confirmed through 2023; 2024-2025 coverage is unconfirmed at the time of this listing.