Includes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and hardware Significantly smoother shifting than stock due to a roller detent shift drum with reduced inertia and gear dogteeth with lead-in ramping Gear ratio of 2.94 1st gear and .86 6th gear Fits into stock and most aftermarket 5-speed transmission cases Bearing door is manufactured from 6061-T6 Aluminum and features wider bearings and a bearing retainer plates instead of the stock style snap rings Gearsets are made out of 8620 steel, gears are cut before heat treating then precision ground with a diamond coated tooling for quieter operation Lower RPM's for smoother highway speed operation and increased fuel efficiency Redundant Neutral Smooth Shift System Made in the U.S.A.. GEAR ST OD6 01FL 2.94/POL