Driveshaft Shop Rear Axle Bar and Internal CV Upgrade, BMW F8X M3 / M4

Upgrade your BMW F80 M3, F82 M4, or F83 M4 with the Driveshaft Shop Rear Axle Bar and Inner CV Upgrade, designed to handle up to 1200HP. This service strengthens your factory axles with 36-spline high-grade aircraft-quality bars, a Chromoly 108mm inner CV, and reinforced outer CV internals for unmatched durability.

Key Features:

• 36-spline axle bars (OEM has 28 splines) for improved strength
• Chromoly 108mm inner CV with aerospace-grade internals
• Upgraded outer CV internals using a reinforced aerospace-grade set
• Shot-peened and tempered OEM outer housings for added durability
• Factory-style metal boot covers with double O-ring seals

Service Requirement: Customers must send in their OEM axles for modification. DSS will rework the housings and install all upgraded components before returning a fully assembled set.

Performance & Warranty:

• Power rating: Supports up to 1200HP
• 1-year warranty for reliability under extreme conditions

Contact us for lead times and an RMA number before shipping your axles.