3rd Mainshaft Gear. Fits 4Spd Big Twin 1959-1986.

* Stock mainshaft 3rd (1.23 Ratio) (24T)

* OEM 35306-59

* Replacements for stock mainshaft 3rd. The design of drive slots on mainshaft gear has been upgraded to include lead-in ramps for quicker, more positive shifting.

* With Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better.