The Koyo Diff Bearing Kit for M78–M80 Differential (IRS Type) is a premium-quality rebuild solution designed to suit M78, M79 and M80 independent rear suspension differentials. Ideal for differential overhauls, noise repairs, or preventative maintenance, this kit is trusted by workshops and enthusiasts who demand smooth operation and long-term reliability.

Key Features

• Genuine Koyo bearings engineered specifically for M78–M80 IRS differentials
• Designed for independent rear suspension (IRS) applications only
• Precision-manufactured for correct preload, alignment, and quiet operation
• 12-months warranty included

Worn differential bearings can cause whining noises, vibration, excess heat, and premature gear wear. This Koyo bearing kit provides a complete, high-quality solution to restore proper differential performance, ensuring smooth rotation, reduced noise, and improved durability under everyday driving or heavy load conditions.