Countershaft Support Bearing for Nissan Manual Gearbox ?

This OE-spec countershaft support bearing keeps the transmission’s secondary shaft aligned, smooth, and quiet. It carries radial loads from meshing gears, reduces friction, and preserves exact gear backlash. Ideal for restoring crisp shifts and long gearbox life.

Why this part is needed ?

Inside a Nissan manual transmission, the counter shaft spins at high speed under heavy torque. A precise bearing is vital to hold the shaft true, prevent gear noise, and keep synchros happy. Replacing a tired unit eliminates whine and heat, protecting the whole drivetrain.

How it works ⚙️

Hardened inner/outer races and precision rollers create a low-friction path. Bathing in gear oil, it keeps shaft runout minimal and controls endplay, so gears mesh accurately under load and decel.

If the bearing fails ❗

Expect decel whine, vibration, metallic glitter in oil, rough shifts, and even gear pop-out. Continued driving can chew synchros, pit gear teeth, overheat the case, and lead to catastrophic transmission failure.

Build and install notes ?️

Made from high-carbon chrome steel, precision-ground for exact fit. Press in squarely, pre-lube with the manufacturer-specified gear oil, verify shaft endplay, and flush the box if debris is present. Replace seals and gaskets while you’re there.

Compatibility

• Safari
• Civilian
• Safari Pick Up
• Patrol