RC10B74.2 FT Rear Gearbox Pinion Height Inserts (ASC92320)

Rear gearbox pinion-height inserts for the RC10B74 series are replacement spacers that let you dial in the pinion height in the rear gearbox, helping ensure proper gear mesh and reliable performance during runs.

Designed for compatibility with RC10B74 variants, including RC10B74.1 and RC10B74.2 models, these inserts provide an easy way to fine-tune the setup for smooth operation and consistent gear engagement. They install into the rear gearbox to maintain precise spacing and drivetrain feel without adding complexity to maintenance.