These are the Idler Gear Shafts for the Traxxas E-Maxx Monster Truck. These shafts are installed in the center section of the the Gearbox (key #3991) and support the Idler Gears (key #3996).
FEATURES
Replaces worn gear shafts.
Constructed of Lightweight 7075 T-6 aluminum hard anodized/coated.