Yeah it is a two piece unit--the master cylinder is bolted to it and it rec. its power fluid from the power steering unit.
JD SELLER had a pic of a tractor like mine not sure if he can put it on here.
Was told by another owner of a DO MOR that the master cylinder goes out about every two years and that it is very under powered for the use it has.
Was told if you install a rebuild kit or go with a new unit--the service life is near two years.
750. was a price on a new unit and 320. was the price for a rebuild kit.
Doesn't sound like a good unit for service life.
This is a 1970's tractor with a Detroit and 4x4 and 4 wheel steer and a funk tranny.