The Loyd Carrier was built upon the mechanicals (engine, gearbox and transmission) of a 15 cwt 4x2 Fordson 7V truck with light steel frame to which armor plate was bolted to the front and sides for minor protection. The engine was at the rear of the Carrier with the radiator places behind it. The transmission took the drive forward to the axle at the very front where it drove the tracks. Both the front drive sprockets and idlers (which were also notched) at the rear of the tracks were fitted with brakes, actuated by a pair of levers by the driver. To turn the vehicle to the left, the brakes were applied on that side and the Carrier would slew round the stopped track.
The upper hull covered the front and sides but was open to the rear and above; as the Carrier was not expected to function as a fighting vehicle this was not an issue. To protect the occupants from the weather a canvas cover could be put up with included frames.