Barn find 72 340 duster

Well got the rear end and leaf springs out today and got the casters from crackedback in place on the rear of the body. Heavy coating of dirt and oil on the rear end . Initial cleaning turn up a few factory markings . Axel tube on drivers inside and the other markings so far are passenger side third member case. It was hot today and I am very sore. I remember why I told myself twenty years ago why I would never do a ground up again. also factory tag still in place 323 gears...