Drive Shaft Shop BMWSH1 1-Piece Chromoly Driveshaft 4-Bolt Rear Flange

The Drive Shaft Shop BMWSH1 is a 1-piece chromoly driveshaft engineered as a high-performance replacement for BMW E36 M3 5-speed manual applications with a 4-bolt rear differential flange. Built from 3" x .083" DOM (Drawn Over Mandrel) chromoly steel tube, this shaft delivers superior strength and durability over the factory two-piece unit.

A 108mm CV joint mounts directly to the differential, eliminating potential pinion angle issues and enabling smoother, more consistent power transfer. By converting to a single-piece design, the factory center hanger bearing is removed entirely — reducing drivetrain mass and improving rotational feel.

Key Features:

• 1-piece chromoly steel construction — 3" x .083" DOM tube
• 108mm CV joint eliminates pinion angle issues
• Removes factory center hanger bearing for a cleaner drivetrain
• Dynamically balanced at 9,500 RPM for vibration-free operation
• Includes adapter plates for transmission and differential flanges
• All necessary mounting hardware included
• Carbon fiber version also available: part number BMWSH1-CV-C

Each shaft is precision-balanced on a high-speed 9,500 RPM balancer to ensure smooth operation at all power levels. The kit ships complete with adapter plates and all required hardware for a direct bolt-on installation. Note: This driveshaft is designed for the 4-bolt rear differential flange only. Vehicles equipped with a 6-bolt rear flange require part number BMWSH2-CV-S.