it is a direct factory replacement for wear items or gearing changes

Included steel insert stays on the center differential when the spur gear is removed

INCLUDES: Back Plate with Mounting Screws

Only fits SCX24 Deadbolt

This is the N Scale Old Homestead Built-&-Ready Structure from Woodland Scenics

Powerhobby Hardened Steel 28T Mod1 5mm Pinion Gear Mod 1 Speed Run / Drag Racing Kyosho Parts it is a direct factoryPowerhobby Hardened Steel 28T Mod1 5mm Pinion Gear with 2 Grub Screws Description Fine tune your RC vehicles gearing with a Powerhobby Hardened Steel Mod 1 Pinion Gear. Designed for motors with a 5mm shaft, these gears provide the strength and durability needed for high power RC cars, trucks, speed run vehicles, and drag racing applications. Each pinion features two set screw holes for a more secure attachment to the motor shaft. Two M4 grub screws