pic: Proto Type Base Built

[GeeTwo]

Oh - but I do like the idea of having one double-ended piston drive both shifters. Since the high gears must be on the motor side of one gearbox and the wheel side of the other, this is probably not a COTS gearbox, or at least a reconfigured one.

I thought for a while that these might be AM Super Shifters with the spacers instead of the extrusion, with the one on the left in the picture built with a lot of pieces backwards (both plates, and the plates on the left gearbox in the picture flipped so the shafts line up, as well as the high/low swapped on the dog and drive axles). Even with all that, the location of the gears on the shifter shaft don't quite work out; one side would be in low gear while the other was in high - am I missing something?