Please help me identify the rear axle on my ½ ton Chevy pickup. It appears I have a 1948, because the gas tank was underneath, not behind the seat, and the windlace is fastened with retaining strips. But, the engine is from a 1953 and the bed is from a 1954. I want to have the axle rebuilt, and there is a different kit for 47-50 and 51-54 rear end gear kits. I have posted pictures of my axle at the following link: https://picasaweb.google.com/barthhc/Axle?authkey=Gv1sRgCPr0-aDHqJrlswE
It looks like there is a number 180 on the casing.