looking into a 2 speed aux overdrive to add behind an Allison auto (aka 2 speed Brownie) Any OLD MECH'S out there have the part numbers of the correct aux overdrive box. If I remember right Eaton made a 2 speed overdrive unit. Spicer came out with one a 5831 B but I think that is to small for my needs it was for GM products
Thanks
BIG
Thanks
BIG