The ER037SF+AR drive shafts deliver matched front and rear shaft components for 1/10 TRAXXAS E-Revo and Summit platforms, specified for hobby drivetrain replacement and setup. Main shaft sections are Steel #45 and the kit supplies a single 6x8x5 aluminium collar plus two 2.5xM4Tx15 screw pins to retain the assembly. The effective length adjusts from 75mm to 80mm to accommodate typical hub spacing variations.
From an engineering perspective, the specification focuses on predictable material behaviour in model-scale use: Steel #45 provides consistent hardness among common hobby steels for wear-prone pin interfaces, and steel retaining rings on both ends secure the pins during service. The supplied collar and pins match the listed dimensions and quantities for straightforward parts-level replacement.
Use this set where a steel shaft solution with a narrow adjustable span is required for TRAXXAS E-Revo or Summit drivetrain maintenance; install with standard model tools and verify fit across the 75mm to 80mm window.