Hey Richard, the conventional wheel part # AM20504 that you referenced has a backspacing of 4 inches. It looks like the stock wheel backspacing of your 1956 Dodge Coronet is 4.5 inches so hopefully with 1/2 inch less you'd still have clearance. view full answer...
Hey Tim. The backset is 5" on the Dexstar Conventional Steel Wheel item # AM20504. This is a 15" x 6" rim with a 5 on 4-1/2 lug pattern. It has a +0.5" offset and a 1,820 lbs capacity.
What are you looking to use this wheel on? view full answer...