Martin, Sorry I was just jabberin' away there and forgot. Kinda like climbing out from under the truck,crawling over to the toolbox and thinkin' what am I here after. Regardless It is a 70 C50, 350 2 barrel, 7000 lb. front axle with 9000 lb. springs 15000 lb. rear axle with I don't remember what springs. A rather odd configuration in my opinion but have overloaded it numerous times without bending anything obvious except the frame and yeah it has a little sag in it. Don't know why it is not double framed or at least fished. 15 by 3 front brakes and 15 by 5 inch rears.
I just was hoping someone had already encountered this problem. I will have to hire me a day hand if I pull the rear hub. Don't know if the old back can handle it anymore.
George on a side note I don't think I would like demented studs.

I also have a 46 1 1/2 ton that has been kinda moldering in the shed a few years need to get back on it and put it to work. Tom