Highway 5th Gear Set for Toyota Manual Gearbox ⚙️

This overdrive gear keeps engine revs low at cruising speed, improving fuel economy, lowering noise, and reducing heat. It’s a precise OEM-fit replacement for smooth, quiet highway driving and long transmission life.

Why it’s needed

• Restores proper overdrive ratio for efficient cruising
• Prevents vibration and whine from worn teeth
• Protects synchro hub and bearings from cascading wear

How it works

The 5th gear pair sits on the mainshaft and countershaft. When the synchronizer sleeve locks the dog teeth, the helical gear engages, transmitting torque with minimal drag. Hardened steel and precise tooth profile ensure quiet mesh and stable load sharing at high road speeds.

If it’s damaged ⚠️

• Pops out of 5th, grinding when shifting
• Metal shavings in oil, rising temps
• Loss of overdrive: higher RPM, worse MPG, faster wear on the entire gearbox

Compatibility

• Avensis
• Camry
• Camry/Aurion/Hv
• Previa/Tarago
• Rav4
• Rav4 J/L