Ive started working on my '70 Mach and one of the easier things to restore is the heater box. I need to find another heater blower motor and Id prefer an OE unit that is still operable but Ive been comparing the repro units and I dont like the look of the case for the 69/70 units. The case for the 65/68 units looks more like the OE motor for my Mach but Im insure if I cause one since the motor is a three speed. I dont recall and havent checked the MPC but is the 69/70 motor also three speeds? Would it be reasonable to assume I could use the earlier motor if it bolts up and I can wire it in? Or . . . if someone has a spare OE 69/70 motor theyd sell me.