Only eleven MA70 Group-A cars were built by TRD Japan for homologation racing. A few out of many special developed parts that were fitted to the various Group-A race cars happen to include a cast magnesium nine litre oil pan with matching high flow oil pump, 288 camshafts with 10.88mm lift, Hollinger close proportion 5-speed gear-set in the R154 case, Harrop 4 piston brake calipers with 15.5 ″ (393 mm) rotors, and TRD-sourced torque-vectoring mechanical limited-slip differential with 50:50 left:right lockup on full throttle. TRD was also responsible for the thick rear-anti squat tram-rods which were integral to the multi-link rear suspension setup to control rear squat under hard acceleration and launching.