Unknown brackets

[azmoparboy]

Hi All, I have a club member that is finishing up his 1973 Challenger and has asked me if I could tell him if these two items even go on a Challenger. I have a 1971 Challenger and didn’t recognize these brackets. Does anyone here have an idea if they even should be installed on a challenger?

AZmoparboy

 

[70chall440]

Look like valance brackets but I don't think they are.

 

[Mopar Nut]

Fender braces.

 

[DetMatt1]

Not a clue.

 

[RJHJR]

Those are front bumper brackets that support the rubber between the fender and the bumper.
I thought they were only used on 70s or maybe 71s. They were not always used and often discarded. There was a thread on here a few months ago about it.

 

[azmoparboy]

Thank you very much, this will help out my friend

 

[brotow]

I believe those brackets are for a 73,74 challenger plastic bumper extensions. As in this picture. my 1970 does not have anything like that to hold my bumper rubbers in. 1973 1974 Challenger Bumper Brackets and Reinforcements in Parts / Misc For Sale

 

[RJHJR]

Huh.
It may indeed be for a plastic bumper, or there may not have been consistency on the line. Both make sense but I don't know. There's another thread about these on here somewhere indicating some cars had them some did not.
What I do know is I took these off the F-4 car in the photos and I'm certain it had never been apart. It has a build date of 121. My avatar has a build date of 928 and it does not have them. I'm holding one against the banana car where it was in the F-4 car. The banana car has been apart so its not a good indicator. I've taken a few others apart over the decades and only remember these on a really loaded RT convertible.
Both have L & R have the pentastar and same numbers 90718-210 under which is 10946 and off to the side is an R or L.
It does not appear in the parts book or the fastener guide I have.