Tank truck

This is a truck top for ProtoTank by timmiclark http://www.thingiverse.com/thing:972768

this tank uses 4 geared brushed motors &
http://www.banggood.com/5Pcs-DC-3V-6V-Dual-Axis-Gear-Reducer-Motor-For-Arduino-Smart-Car-p-949555.html?p=LA1820677103201407RS

2 brushed 10a escs with break
http://www.banggood.com/10A-ESC-Brushed-Speed-Controller-For-RC-Car-And-Boat-p-908719.html?p=LA1820677103201407RS