Where to start... Mostly Tamiya TXT-1, 3-speed Tamiya truck gearbox mated to original TXT one, home machined UJs to adapt to TMaxx drive shafts, home made heavy duty stub axles/adaptors for 3.3 wheels (Note the posh hub caps!), home made diff lock components including hydraulic operating rams, 4-wheel hydraulic steering, again home made rams, 1-off radio deck & quick release battery holder. Transmitter (Not shown) is Traxxas TQ3 board fitted into stick case & modified to give 4ch operation. Work in progress...