Compact upgrade: Tamiya 22040 TA08 Lightweight Ball Differential Set 37T OP-2040 for TA08 PRO  [22040]

Refine TA08 PRO balance using the lightweight ball diff

The Tamiya 22040 TA08 Lightweight Ball Differential Set 37T OP-2040 is a targeted upgrade for drivers wanting smoother rotation on low-traction layouts. Placed in the rear gearbox, the ball diff adds subtle limited-slip behaviour that helps the car track cleaner through corners.

Included parts overview

The package supplies components that focus on lowering inertia and improving drivetrain feel:

• Aluminum Differential Joints: Machined A and B joint pieces for reliable engagement and long life.
• Lightweight Ball Differential Pulley: 37T pulley designed to reduce weight while preserving tooth strength.
• Differential Plates and Screws: Secure mounting hardware for consistent assembly.
• High-Quality Bearings and Steel Balls: Supplied 850 bearings and steel balls for smooth rotation.
• Compatibility: Suits TA08 PRO installations and is also compatible with TA07 and TRF420 chassis types.

Practical setup advice

Use this ball differential when you need more rotation and controlled slip at the rear on low-grip surfaces. For heavy traction tracks, consider an oil gear diff to achieve firmer lockup and steadier turn-in.