Late 33 and all 34s have the same distance for mounting the front bumper brackets to the frame at 4 3/4 inches. The early 33s had a distance of 2 3/8 inches. The front frame hole is in the same position on all.
Well, I just screwed up then. I just picked up a set, and didn't know there were two different brackets for the 1933 model. Apparently I have a "late" '33, and just bought "early" '33 brackets.
The 2 inner holes on 33 are 22 in apart and 34 are 26 in apart .They can be used on both years if same year brackets and bumpers are used together (not correct for year for restoration) Lee34