axia transmission drum, alza transmission drum, auto transmission overhaul set

The reverse drum in the automatic transmission of Perodua Bezza, Axia, Myvi, and Alza is an essential component responsible for enabling the reverse gear operation. Found in automatic transmissions like the A4RA/A4RL (4-speed) , the reverse drum works in conjunction with the reverse clutch and hydraulic circuits to transfer torque in the reverse direction.