This Schumacher Racing Products factory replacement spur gear is an 80-tooth, 48-pitch unit designed for the Cat PB platform. It is CNC machined for consistent tooth geometry and is a direct-fit component for the centre differential assembly. Hobbyists running the Cat PB 4x4 buggy and needing to restore drivetrain performance or experiment with gear ratios will find this a straightforward like-for-like swap. Features: 80 tooth count 48 pitch CNC machined Centre diff application Cat PB platform fitment 7/7/26 cs