Steve,
It's a 4400 "medium duty" alright...
Has the 4400 hood scripts, plus the Serial code P-55, and a 14,000 lb GVW rating...
I believe it is the 160" (I'm approximating!) WB, oufitted with a 10ft Galion low-side dump body...
It has the big single-speed rear with the 15x4 rear brakes...
My buddy has a '51 1-ton dump with eight-lug 18" wheels: the front hub adapters look very similar, with the screw-in hubcover...
I think GM was a little misguided putting the "medium-duty" axle in this big a truck, IMHO...
As long as I can fit the heavier axle under the existing front-end, I'm not too worried...
The truck is going back on the road with an antique tag for now, so no hauling until I switch to a regular plate.
Thanks...
Frank
