Where to get brake pedal bushings?

Looking for the bushings that go between the brake pedal shaft and the brake pedal for a 73 Duster automatic trans.
Yearone says:part number FD1770 works for 1965-1974 brake pedals for all models except a-bodies...

and Brewers site says: CPB770:
Brake pedal (and some clutch pedal) white plastic bushing .500" inside diameter, .560" outside diameter. Fits most A-B-C & E body cars. Two per car, sold each.

The issue is that the cross shaft for my car is bigger than .5" and smaller than the 1" one...is there a special size for A-bodies?