Driveshaft Shop - Rear Axle Bar / Internal *Upgrade Only* || F10-F13 M5/M6

F10 M5 Rear Axle Bar & Inner CV Upgrade

Fits: BMW F10 M5

Unlock the full potential of your high-powered F10 M5 with this bulletproof rear axle and CV upgrade package. Designed for serious power builds, this kit features 36-spline aircraft-grade axle bars, custom Chromoly CV internals, and precision-machined components built to handle up to 1,200 horsepower.

🔧 Key Features:

• 36-spline high-strength axle bars (stock is 28-spline)

• 108mm Chromoly inner CV with aerospace-grade internals

• Upgraded outer CV internals for maximum strength and reliability

• Tempered and shot-peened OEM outer CV housings

• Factory-style metal CV covers with dual O-ring seals

• Custom CV cages and race sets for maximum load handling

📦 Service Process:

• Customer must send in OEM axles for upgrade

• Full rebuild includes:

  • New 36-spline bars

  • Chromoly 108mm inner CVs

  • Upgraded outer CV internals

  • All components assembled, tempered, and sealed

• Designed and tested for extreme drag or track use

⚠️ Important Notes:

• OEM axles required for this upgrade — no cores provided

• Call prior to shipment for an RMA number and lead times

• Rated for 1200HP applications

• 1-Year Warranty included

• Fitment must be confirmed before ordering — Empire Autowerx is not responsible for incorrect part selection

This is the last axle upgrade you’ll ever need for your F10 M5. Built to handle brutal launches, high-speed abuse, and everything in between — this is the go-to solution for serious enthusiasts and racers.