I'm not sure I would recommend using the Truck over the MM. The MM is an awesome ESC, and its features/programmability is easily twice that of the Truck. The Truck simply has more mass and surface are to dissipate heat with.
SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz