Lightweight rear gear diff axle shaft for 1/10 pan vehicle or 1/10 formula gear differential features tough shaft which specifically machined for perfect balance and smoothness with zero run-out for vibration-free procedure. Created from HUDY Spring Steelâ� Lightweight design for paid off rotating fat. The axle replaces previous Axle Shaft #375017 and fits #374901 â€✠Gear Diff 1/10 Formula and #374902 â€✠Gear Diff 1/10 Pan Car. Note: please be aware that due the type of this gear differential therefore the forces and tensions included, the gear differential with both steel and graphite axle could be less resistant on wear and/or breakage compared to the standard ball differentials. If you should be perhaps not worried about performance but the reliability and lifetime we recommend to make use of the standard ball differential.