the 7spd hold's up to the 350 and 427 E7 mack's in quad qxle dump truck's. . .
I think it's a T2070 mack 7spd it's the 5spd non OD with a air shift granny and OD. . .
I believe the auxy is a spicer unit. . .
the guy at monroe truck and equipment said they'll hold up fine to KT cummins he did say run heavy oil. . .
I still gotta go give them a looking over. . .
i can get the number's for sure if you would Like. . .
Mike
