I bought this tool because I needed to replace two spacers on two different engines. One is 3rz (2.7 liters), the other is Toyota 2rz (2.4 liters). For such work, the thing is worth its weight in gold. The 2rz balancer was removed from the car with the engine and on the stand. It took a little over 2 minutes. 3rz was in the truck and the balancer was removed and a new one installed in less than 10 minutes.