Unfortunately no... it was a spur-of-the-moment type thing...
really, its not surprising that it did pull the truck, we were using a gen1 am pneumatic shifter and then you factor in the 2:1 reduction in the sprockets, i figure we had about 50lbs of pushing force, so, if the truck's in neutral and the parking lot around MCC (our place of robot work), it shouldnt take a whole lot of force to move. its allll about the bearings then
-q