1947, when it was replaced by the BM model. Mechanicals Similar to the KB, except for changes mentioned above. KCY A military amphibious vehicle using a metal boat style hull and KC truck mechanicals. Dates and Production Figures Production was 198 units between November 1943 and August 1944. Mechanicals The engine, gearbox, suspension and rear axle were based on the KC mechanicals. In addition, 4-wheel drive was added via a 2-speed transfer case. Water propulsion was by a PTO driven propeller. Brakes were hydraulic. References Bibliography </ref> G1 Vehicles introduced in 1935 Rear-wheel-drive vehicles