Challenger MT300B tractor loaders come in four models ranging from 45 to 75 PTO horsepower. Reverse speeds on standard 12x12 shuttle transmission are 15 percent slower than comparable forward speeds for better control, says the company. Four-wheel braking is standard on all-wheel-drive models. Powered by 3-cylinder Challenger 3.3-liter turbocharged diesel. Other standard features include electro-hydrualic engagement of differential lock and power front axle, 16 gpm hydraulic pump, and Category I/II 3-point hitch with lift capacity of 5,500 pounds at the ball ends.