All new Kiwi Quick Change from Derek Thomason, Nelson, New Zealand for Ford Model A rear end. It has never been installed. Centre is 3" 1/2" wide. Gears are new Winters 4400 series gears set #2 with 23 and 24 teeth. Instructions and Winters gear table included. For ratio please see Winters chart attached. Very nice for A-V8 flathead hot rod or a four banger with model A axle. What you see is what you get. - SOLD -