BMR BK051 Polyurethane Differential Bushing Lockout Kit for 2015-2025 Mustang

Vehicle Fitment

• 2015-2023 Ford Mustang (S550 platform, V6, EcoBoost, GT, GT350, GT500)
• 2024-2025 Ford Mustang (S650 platform, GT only)

Features

• Installs over the factory differential bushings - non-permanent
• Molded from firm 95-durometer polyurethane to reduce deflection
• Significantly decreases wheel hop and pinion rise
• Improves throttle response, traction, and rear stability
• Minimal impact on NVH compared to triangular lockout kits
• Precision molded for exact fitment without needing modification
• Includes all necessary hardware in the kit
• Installation time: ~1 hour

Specifications

• Material: 95-durometer polyurethane
• Fitment: Rear differential of Mustang S550 and S650 platforms
• Installation: Retains OE rubber bushing in place
• Finish: Natural polyurethane (visible red inserts)
• Drivetrain Compatibility: RWD Mustangs

Included Components

• 4x Polyurethane bushings / lockout plates
• Various spacers, bolts, washers, lock washers, and nuts

Product Description

The BMR BK051 Differential Bushing Lockout Kit is engineered specifically for the 2015-2025 Mustang (S550 and select S650 models) to reduce excessive differential movement under load. By fitting precision-molded 95-durometer polyurethane inserts around the factory bushings, it drastically reduces wheel hop and pinion rise while improving throttle response and rear traction - all without removing or replacing the OEM bushings.

This non-permanent, bolt-on solution offers a performance upgrade with minimal NVH increase. Installs quickly (in about an hour) with hardware included and remains fully reversible. Perfect for street, drag, or handling-oriented builds looking to tame the rear end without compromising day-to-day comfort.