Technician a Says That If There Is Excessive Up and Down

Multiple Choice

Technician A says that if there is excessive up and down play in the driveshaft, the extension housing bushing should be replaced. Technician B says that on many transmissions the extension housing has to be removed to replace the bushing, but on some older transmissions special pullers and installers could make this an in-vehicle repair. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B