Companion Flange Assembly for Driveline Connection ?

This driveline flange is a key link between the propeller shaft and the differential input. It is needed to transfer engine torque smoothly to the rear axle while keeping the shaft perfectly centered and secure. When installed correctly, it helps maintain proper driveline angle, reduces vibration, and protects seals and bearings from uneven load.

How It Works ⚙️

The flange mounts on the differential pinion/output and provides a strong bolting surface for the driveshaft yoke. As the shaft spins, the flange carries rotational force evenly, keeping the connection tight under acceleration, cruising, and engine braking. Precision machining ensures balanced rotation, which is critical at highway speeds.

Why Replacement Matters ✅

A worn or damaged flange can cause clunking noises, driveline shudder, and leaks at the pinion seal. If ignored, it may lead to seal failure, gear oil loss, bearing damage, and in severe cases driveshaft looseness that can harm the differential and underbody parts.

Common Signs of Trouble ?️

• Vibration increasing with speed
• Clunk when shifting to drive or reverse
• Oil seepage near the differential input
• Loose or damaged bolt seating surfaces

Compatibility ?

• L300