Parts such as the Middle Drive Gear: Oil Seal (22f), Housing, Bearing, Shim, Thrust, Shim, Pinion (0.15t) are included in the T50 1986 2fm England 262fm-310e1 Middle Drive Gear parts fiche.
The Bolt, Flange (4a0) is the lowest priced item on this Middle Drive Gear schematic.
The sub assemblies and components that make up this Middle Drive Gear include this Middle Driven Comp., the most expensive part.
