The phrase "rear driveshaft" refers to a component in a vehicle that transfers power from the engine and transmission to the rear wheels. It helps to propel the vehicle forward. Full definition
Previously the system only compared front and rear driveshaft speeds. (fourwheeler.com)
Side - impact curtain air bags, traction control, electronic stability control, front dual - stage air bags, ControlSlip rear driveshaft, and SecuriLockTM passive anti-theft system (realtormag.realtor.org)
Rear driveshafts of asymmetrical thickness negate wheel hop during hard launches. (automobilemag.com)