The Traxxas 30-Tooth Idler Gear is a direct replacement steel idler designed for the Magnum 272 transmission. It restores proper tooth mesh and drivetrain alignment so shifting and power transfer feel consistent again.
Steel construction handles load and wear better than softer materials, so a damaged or worn idler is an easy fix that brings the gearbox back to reliable operation. This part installs in place of the original idler without modification. Note: designed for the Magnum 272 transmission and does not fit the Magnum 272R variant.
Replace a chipped or worn idler to stop noisy engagement and uneven gear wear. The Traxxas 30-Tooth Idler Gear is a straightforward, reliable replacement for maintenance and repair work on models using the Magnum 272 transmission.
When you upgrade to more powerful motors and parts, the stock plastic idler gear in the transfer case sometimes doesn't handle it when you push the RC to its limit..
Works just right on the Traxxas Stampede 1/10 scale
Essential for Upgrading Rustler
You gotta have this gear if you're upgrading a Rustler XL-5 to brushless/lipo. The nylon gear gets shredded fast, mine lasted like 20 minutes after I upgraded.