Purchase
Needed per side
5 wheels, 8 in. pneumatic
5 in. keyed hub
6 sprockets
Bought
10 wheels, 8 in. pneumatic
2 hubs, 5 in. keyed
16 bearings
2 long .5 in. shafts
8 sprockets
Took apart 2 speed transmission
Both worked
Brainstormed frame ideas