The Gilson 773 is a lawn tractor produced from 1969 to 1970. It features a 7 hp Briggs & Stratton 275cc 1-cylinder gasoline engine with manual recoil start. The tractor has a 3-speed belt-driven gear transmission with 3 forward and 1 reverse gears. It is a two-wheel drive with manual steering and an open operator station. The 773 model includes an electric start with mower variant. It has a mid PTO with manual idler clutch. The tractor weighs between 395 to 405 pounds depending on the start type. Tires are sized 13x5.00-6 front and 16x6.50-8 rear. Attachments include a 34" mid-mount Gilson 777 mower deck with 3 blades and manual lift, offering a cutting width of 34 inches and cut height from 1.75 to 3.25 inches.