Rhino Racing & Team AD TCD Torque Coupling Differential Assembly Unit - RA-2608First batch sold out, pre order for the next batch. Rhino Racing & Team AD TCD Torque Coupling Differential Assembly Unit RA 2608 Off Throttle The off power works the same way as a standard open diff. On Throttle When the throttle is engaged, the diff will become more locked and will give you more forward traction. There are different springs to tune this engagement point. This will give you a more instant quicker reaction (on off throttle) compared