This product dampens transmission noise (reducing the notorious shifting clunk found in these gearboxes), dramatically reduces temperature, provides thicker oil films between gear teeth and resists throw-off

Same fluid as our unique Heavy ShockProof® Gear Oil

For all H-D® trans including with Evolution engines, Twin Cam engines, and latest 6-speed Cruise Drive

For all aftermarket versions like Baker, JIMS, S&S, etc.