4-speed an official factory part number. Winning Since 1980 Consistent production of the world's lightest, strongest, smoothest-shifting manual transmission is only part of this company's success story. All internal components are manufactured in-house.
Every transmission is hand-assembled by our experienced technicians.
This company has always thrived on challenges. Each step of the manufacturing process is performed under one roof, except for foundry casting and precision heat-treating. The net result is a superior quality gear that's priced competitively with the weaker, welded, modified factory gears offered elsewhere.