This is a replacement Traxxas Drag Slash Driveshaft Assembly.
Fortified for hard launches and superior durability, Extreme-Duty rear driveshafts are 20% larger than standard driveshafts for outrageous power handling. The larger diameter shafts offer the same articulation and suspension travel, but are rated for even more tire-shredding torque. Driveshafts come fully-assembled and ready to install with screw pin. Fits left or right.