The Tekno RC TKR1951X M6 Driveshaft & Hub Carrier Set is a heavy-duty drivetrain upgrade designed for 2WD Traxxas platforms like the Slash, Rustler, and Nitro Stampede. It replaces the stock plastic axle and hub setup with hardened steel driveshafts and upgraded rear hub carriers featuring larger bearings and multiple camber link positions for improved durability and tuning. The 6mm stub axle design eliminates common bending and breaking issues found in stock parts while reducing drivetrain slop for smoother power delivery. It also uses a captured CV pin system to prevent e-clips or pins from popping out during hard runs. This makes it a popular upgrade for high-power brushless or heavy bashing setups where stock components often fail.