The Guy Warrior II range offered the largest payload, for the lightest weight, at the lowest price. One principle consideration was driver comfort. The Guy cab was considered to be the most luxurious cab fitted to a commercial vehicle chassis at the time. Standard features included windscreen washers, an external sun visor, an internal green tinted sun shield, fully adjustable seats, a cigarette lighter, a socket for an electric razor, and provision for the fitting of a radio. The razor and radio could be purchased as optional extras.

The cab was built in two sections, split at the waistline with a quickly detachable top half for easy maintenance. It had a deep wrap-round windscreen, fully adjustable seats, wind-down door windows, and fully hinged quarter lights. Extras included an external double skin, heater, and passenger tinted sun visor.

The chassis came with three engine options. The first of these was a 5.1 litre six-cylinder unit which produced 90bhp, this was mated to a five-speed constant mesh unit which came in an indirect-drive and overdrive versions. The second engine option was a 6.17 litre six-cylinder engine that produced 110bhp which was mated to a six-speed constant-mesh unit, with an overdrive top gear. All forward gears were in constant mesh with engagement by dog clutches. A power-take-off could be fitted. The final engine option was a 7.7 litre six-cylinder engine which produced 125bhp. This was mated to an inertia-lock synchromesh unit with 5 forward speeds and one reverse. The synchromesh acted on the 4 highest ratios. Provision was made for fitting a power take-off. A 14" diameter single-plate hydraulically operated clutch was fitted..

An Bendix-Westinghouse air-hydraulic braking system was fitted. Overslung semi-elliptic leaf-springs, 52 inches long at the front and 60 inches long at the rear. were fitted. Lever-type hydraulic shock absorbers on the front axle were available as an extra. On the 9 foot wheelbase tractor, the springs were 58 inches long. The chassis was a rigid assembly of carbon-manganese steel channel sections with bolted-in frame members and cross members, reinforced by flitch plates. Towing facilities were included at the front and rear.

A compensated 24 volt lighting and starting control, with 89 amp hour batteries, consisting of four 6 volt units was fitted.

A cylindrical welded steel tank with a capacity of 33 gallons was fitted to the 9 ft. model and a 40 gallon tank on all other models. Larger capacity, or dual tanks could be fitted on long wheelbase chassis.