Ferguson's mounting system evolved from two link arms one top, one bottom to three, and from spring-assisted lift to hydraulics.
The hydraulic system is controlled by the operator, and usually a variety of settings are available.
When buying a used tractor, that machine may not have had its three-point hitch adjusted in a long time, hence the three point hitch levelling lever may be long rusted shut.
If you can trade it back for a 4 ft, I would.
The Love 1-Plow and 2-Plow tractors were powered by a Willys engine, transmission and rear axle.
What we know about the John Deere 5320 tractor is that it has a 3 cylinder Diesel Engine that produces 64 horsepower.