I have recently bought a kit a from ECI,, the only real mods that had to be done was the lower hole on the mounting bracket had to be drilled out to 1/2 inch i have an early axle , and a small piece of casting taken off the caliper,, everything else bolted in pretty decent,,all pieces were good quality but it was a good chunk of change but well spent for safety and piece of mind, I have access to a full machine shop , but the regular backyard guy can put it in with minimal effort,, I have a 53 3100,
