I have a 1950 1/2 Ton pickup and the chassis I am using has a 1976 Cadillac Seville rear axle with disc brakes. How do I measure or find the axle width of this axle to compare with the known axle width of the original axle? Does anyone know these measurements or where I can find them? I know I can measure the axle I have. How does one do that and what are the points you measure from? Thanks!

Richie