Technician A says that torque converters with welded halves are not designed to be field serviceable.Technician B says that some Allison torque converter are designed to be serviceable.Who is correct?

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

Technician A is correct because torque converters with welded halves are indeed not designed to be opened and serviced in the field; they are typically replaced as a unit. Technician B is also correct because some Allison torque converters are designed to be serviceable, allowing for maintenance and repair without complete replacement.