The Massey-Harris General Purpose was among the first successful four-wheel drive tractors
Arlen Salmela’s 1931 Massey-Harris GP tractor. The GP was an early leader in four-wheel drive technology.
The fully restored Massey-Harris GP.
The GP was compact, easy to work on and steered easily, but was not powerful enough to run most threshing machines.
Company promotional materials claimed the 8-foot GP could be turned within a 6-foot circle. After Arlen removed (and saved) the V-shaped lugs from the GP’s wheels, he bolted on recap tread from a 100-20 truck tire so he could drive it on paved surfaces.
Before restoration: Arlen’s 1931 Massey-Harris GP tractor was parked behind his house for half a century.