3rd Gear Set. Fits 4Spd Big Twin Mid 1976-1986 with Caged Needle Bearings.

Close ratio 3rd gear set (1.35 ratio) (18Tx23T)

* Transmissions built after mid 1976, to serial U-8959 (or higher) with caged needle bearings.

* New design drive slots include lead in ramps for quicker, more positive shifting (same as stock 3r