Pinion Shaft Gear Kit - Middle Size - '77-'99 TT93 625" big bore cylinder case

625" big bore cylinder case for any stroke up to and including 5" and most stock length connecting rods

resulting in higher cam lifts that are possible with the gear kit

Protects against rust development and corrosion

Breathing system eliminates oil issues associated with the M8 engines by directing any excess breather oil back into the engine

Pinion Shaft Gear Kit - Middle Size - '77-'99 TT93 625" big bore cylinder casePinion Shaft Gear Kit Middle Size '77 '99 Kit includes middle size (Red) oil pump 24T drive gear, 6T pinion shaft oil pump gear, pinion shaft spacer, and pinion shaft nut Made in the USA For use on '77 '89 big twin engines and S&S flywheels for '77 '99 engines, including S&S SH Series and V Series engines. Must be used as a set or with OEM equivalents.