The MMX Performance G8X Rear Differential Billet Front Cradle / Height Adjustable Mount Set is engineered for the BMW G87 M2, G80 / G81 M3, and G82 / G83 M4. Precision-machined from 6061-T6 billet aluminum, the cradle replaces the factory front differential mount and can be configured for either the factory differential position or a 10mm raised position when paired with the MMX Rear Differential Raised Poly Bush (MMR55-1605).

Installed on its own in the factory position, the billet cradle provides a more rigid connection between the rear differential and chassis to reduce unwanted drivetrain movement under acceleration and changing loads. The direct-fit design replaces the factory component without requiring cutting, drilling, or permanent modification, making it suitable for both street and track-driven G8X applications.

For lowered vehicles, the same cradle can be paired with the MMX Rear Differential Raised Poly Bush (MMR55-1605) to raise the differential by 10mm. Lowering the G8X chassis alters rear drivetrain geometry and increases the operating angle of the axle shafts. Raising the differential helps restore the driveshaft and axle geometry, reducing CV joint and axle shaft operating angles while helping manage the additional heat and wear associated with altered drivetrain geometry.

The adjustable configuration allows a single billet cradle to support both standard-height and lowered applications. The mounting configuration selected during installation determines whether the differential remains at the factory height or is raised by 10mm.

For additional differential support, the system can be expanded with the MMX G8X Dual Differential Mount. This creates a four-point configuration using the billet front cradle, two raised polyurethane bushings, and the dual differential mount for increased control of differential movement at the corrected raised height.

The cradle can also be integrated with other MMX rear differential upgrades, including the MMX G8X Billet High-Capacity Differential Oil Pan and MMX G8X Rear Differential Output Shaft Heat Shield Set, allowing the rear differential system to be developed around mounting control, geometry, fluid capacity, and thermal management.

Product Details

• Designed for BMW G87 M2, G80 / G81 M3, and G82 / G83 M4 applications
• Precision-machined 6061-T6 billet aluminum construction
• Direct replacement for the factory front differential cradle / mount
• Can retain the factory differential position or support a 10mm raised configuration
• Reduces unwanted differential and drivetrain movement under load
• 10mm raised configuration requires the MMX Rear Differential Raised Poly Bush (MMR55-1605)
• Raised configuration helps correct rear drivetrain geometry on lowered vehicles
• Expandable to a four-point differential mounting configuration with the MMX Dual Differential Mount (MMR55-1606)
• Compatible with additional MMX G8X rear differential upgrades
• Direct-fit installation with no cutting, drilling, or permanent modification required
• Suitable for street and track-driven vehicles

Related Products

• MMX Performance G8X M2 / M3 / M4 Rear Differential Raised Poly Bush (MMR55-1605)
• MMX Performance G8X M2 / M3 / M4 Dual Differential Mount (MMR55-1606)
• MMX Performance G8X M2 / M3 / M4 Billet High-Capacity Differential Oil Pan
• MMX Performance G8X M2 / M3 / M4 Rear Differential Output Shaft Heat Shield Set