matviar

I bought a basket case 1970 Cutlass convertible about a month ago with the body and frame separated. The guy I bought it from welded up 2 body bushing holes, the ones under mid door area. He never completed the job by drilling them out to 1 1/2 inches. My question is, I dont know exactly where to drill them out. I thought one of the Olds manuals show the locations and measurements. I dont have it. Can anyone help?