Steering wheel too tight

[Russell Reay]

1930 two tooth steering box. Disassembled, thoroughly cleaned, new housing and end plate, correct lube, and adjusted per red book. With axle on jack stands, it steers smoothly, but snug--no play anywhere. When steering wheel is installed it is a little sloppy with the nut snugged down. Installed a flat washer (0.068") and the sw is too tight. I ground the surface of the quadrants and the base of the sw (a little). That improved matters, but not adequately. I don't think it is a good idea to keep grinding those surfaces in search of the perfect fit. What seems like a good solution is a thin conical shim like what is used on rear axles, but I haven't seen any such thing advertised, or mentioned on this forum. Thoughts please.