The 8HP70 transmission is an 8-speed automatic transmission designed by ZF and manufactured by both ZF and Chrysler (TorqueFlite 8) with minimal differences. The 8HP70 is an extremely efficient transmission due to its wide gear range, fast-locking torque converter, and 8-speeds. The 8HP70 performs well under variety of vehicle speeds and loads. The 8HP70 maximizes fuel efficiency with its broad gear set and its light weight of just over 200 lbs. See the full Raybestos Powertrain 8HP70 transmission teardown video and parts listing below.