I would recommend cotacting Herb's parts and ask them.
They sell a very good line of plastic interior dies for Mopars and will know what works without damage to your parts.
Herb's Parts - Mopar Restoration and Performance
:welcome: aboard. Challenger parts also.
I dropped the header panel and cracked it on the right side. No parts missing. Fiberglass repair needed. many more parts
Great. looks like those might have been removed before. Dodge used a large washer on the bumper parts for better strength and support.
I also have a new front bumper for that as well. Still in the wrapping paper as well as many other Challenger interior and electrical parts, New chrome headlight...
Here are some pics of the bumper bracket and reinforcement/mounting plate.
Look up part numbers # 3686582 and 368583 you will find it is the factory number for 1973 Challenger rear bumper Brackets.
And this is the Factory 1973 bumper reinforcement plate
The items that you have are for 1974.
I am getting rid of whats left of my stash of e-body parts. Mostly NOS and used original parts.
Please pm if you re looking for anything you don't see.
Rebuilt 3 speed a/c, heater switch $100.
Mopar 70-71 e-body rallye tach used $150.
70-74 chrome e-body turn signal bezels $50. SOLD
70-73...