30-31 rear bumpers
 

I have noticed on 30-31 rear bumperettes some have a much more pronounced arc than others. Looked in the judging standards and couldn’t find an answer as to why and which models were fitted with which ones?

Re: 30-31 rear bumpers
 

I am not really 100% sure why that would be, my hunch is that some reproduction ones, do not have the proper arc. I recently had some originals plated and I looked for the best set that I could. I matched up many bars, looking for my best set, and I think most of them had a similar arc to them. The original ones that i was working with had either a "C" stamped on the back of the bar or a "U". I know there was no difference between a 30 or a 31 rear bumper. The C and U bumpers I was working with had the same arc.

Re: 30-31 rear bumpers
 

Slant sedans have more arched and different length rear bumpers

Re: 30-31 rear bumpers
 

The rear bumpers are NOT bumpertettes, Ford called them rear fender guards.
A bumperette is a different thing.

https://en.wiktionary.org/wiki/bumperette