All Dana rear ends,27,30,44,60 series and so on are mark with the casting number of that housing on the passenger side bottom rear axle brace
Dana 60 rear and front axles came with several different axle tube outside diameters, 2.5,3.0, 3 1/8, 3 1/4 and as large as 3 1/2 inch O.D.
Look for a Dana 60 housing with the 3.0 O.D. axle tubes to use with stock 8 1/4, 8 3/4 and 9 1/4 inch Mopar car rear ends that had the same size U bolts to hold the rear end onto the leaf springs