Description
Improve differential stability and optimize rear driveline geometry with the MMX Performance G8X BMW M2, M3, and M4 3-Point Differential Lift Kit. Designed for the BMW G87 M2, G80 / G81 M3, and G82 / G83 M4, this performance differential mounting system combines a precision-machined 6061-T6 billet aluminum front differential cradle with an 80A durometer polyurethane rear differential bushing. Engineered for both rear-wheel-drive (RWD) and xDrive all-wheel-drive applications, the kit provides an adjustable mounting solution for street-driven, modified, and track-focused BMW M vehicles.
The MMX Performance 3-Point Differential Lift Kit offers two installation positions to accommodate different vehicle setups. Install the components at the original equipment manufacturer (OEM) differential height to improve differential mounting rigidity and reduce unwanted drivetrain movement under acceleration and changing load conditions. Alternatively, reverse the components to raise the differential by 10mm, helping correct rear driveshaft operating angles on lowered vehicles and reduce unnecessary stress on CV joints and axle shafts.
The front differential cradle, part number MMR55-1604, replaces the factory front differential mount and is precision-machined from high-strength 6061-T6 billet aluminum. Its robust construction provides a firm mounting interface between the differential and chassis while maintaining compatibility with the factory mounting locations. The adjustable design allows the cradle to be installed in the standard or raised configuration without requiring modifications to the vehicle.
Complementing the front cradle, the MMX rear differential raised polyurethane bushing, part number MMR55-1605, replaces the factory rear differential mounting bush. Manufactured from grey 80A durometer polyurethane, the bushing offers increased mounting firmness compared with a softer factory-style rubber mount. Its two-position center section allows the installer to select either the OEM differential height or the raised +10mm position, matching the front cradle configuration.
For lowered BMW G8X M2, M3, and M4 vehicles, the raised installation position is particularly beneficial. Reducing ride height can change rear driveshaft and axle operating angles, potentially increasing stress and heat at the CV joints and axle shafts. By raising the differential 10mm, the MMX system helps restore more favorable driveline geometry, reducing unnecessary operating-angle stress and supporting improved long-term component durability. The raised configuration is designed to work with both OEM and aftermarket axle shafts.
When installed at OEM height, the kit focuses on controlling differential movement under load while retaining the original differential mounting height. The upgraded mounting materials provide a more secure connection between the differential and chassis, helping improve drivetrain control during acceleration, gear changes, and demanding driving conditions. The kit is engineered to provide a minimal increase in noise, vibration, and harshness (NVH), making it suitable for performance street vehicles and track applications.
As the foundation of the MMX G8X differential mounting system, the 3-Point Differential Lift Kit can also serve as the starting point for additional differential upgrades. Drivers seeking further mounting support can consider the MMX 4-Point Differential Lift Kit, which adds a dual differential mount and a second raised polyurethane bushing. For a more comprehensive solution, the MMX Complete Differential Kit builds on the 4-Point configuration with a high-capacity baffled differential sump and output shaft heat shields.
Whether you are upgrading differential mounting stability on a street-driven BMW M vehicle or correcting driveline geometry after lowering your suspension, the MMX Performance G8X 3-Point Differential Lift Kit provides an adjustable, direct-fit solution engineered for performance and durability.
Key Features and Benefits
- Designed for BMW G87 M2, G80 / G81 M3, and G82 / G83 M4 models.
- Compatible with rear-wheel-drive and xDrive all-wheel-drive configurations.
- Includes an adjustable front differential cradle and rear differential polyurethane bushing.
- Precision-machined 6061-T6 billet aluminum front differential cradle.
- Durable grey 80A durometer polyurethane rear differential bushing.
- Two-position installation design supports OEM differential height or a +10mm raised position.
- Helps reduce differential movement under acceleration and changing drivetrain loads.
- Raised configuration helps correct rear driveline geometry on lowered vehicles.
- Helps reduce excessive CV joint and axle shaft operating-angle stress and associated heat.
- Compatible with OEM and aftermarket axle shafts.
- Direct installation into factory mounting locations without vehicle modification.
- Engineered for minimal additional NVH, making it suitable for street and track use.
- Serves as the foundation for the MMX 4-Point and Complete Differential Kit upgrades.
Product Specifications
Manufacturer: MMX Performance
Product Name: G8X M2 / M3 / M4 3-Point Differential Lift Kit
SKU: MMR55-0001
Front Differential Cradle Part Number: MMR55-1604
Rear Differential Bushing Part Number: MMR55-1605
Front Mount Material: 6061-T6 Billet Aluminum
Rear Bushing Material: Grey Polyurethane
Rear Bushing Durometer: 80A
Adjustment Positions: OEM Height or +10mm Raised Height
Installation Type: Direct Fit
Vehicle Modification Required: No
Drivetrain Compatibility: RWD and xDrive
Intended Applications: Performance Street and Track
Vehicle Fitment
BMW G87 M2
BMW G80 M3
BMW G81 M3 Touring
BMW G82 M4 Coupe
BMW G83 M4 Convertible
Compatible with applicable rear-wheel-drive and xDrive configurations. Verify the specific vehicle application before ordering.
What's Included
1 x MMX Front Differential Lift Mount / Cradle (MMR55-1604), replacing the factory front differential mount.
1 x MMX Rear Differential Raised Poly Bush (MMR55-1605), replacing the factory rear differential mounting bushing.
Installation Notes
The differential height must be selected during installation. The front differential cradle and rear polyurethane bushing must both be configured to the same position, either the original OEM height or the +10mm raised position.
The OEM-height configuration is intended to improve differential mounting stability while retaining the original mounting height. The raised configuration is intended primarily for lowered vehicles requiring improved rear driveline geometry.
Professional installation is recommended to ensure correct component orientation, differential positioning, and secure installation. Confirm vehicle fitment and drivetrain configuration before purchasing.
