Anyone know where these go, or what they are?

[Pratty]

My 68 Charger project came as a shell with a bunch of parts in the trunk. Some are from a 69 and a couple are from a challenge, I think. Is be very grateful if anyone can identify what these are as I've no clue. Thanks in advance!!! Dan

 

[Vaanth]

My 68 Charger project came as a shell with a bunch of parts in the trunk. Some are from a 69 and a couple are from a challenge, I think. Is be very grateful if anyone can identify what these are as I've no clue. Thanks in advance!!! Dan

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The pictured items are rear bumper guard brackets which also serve as braces and exhaust hangers.

Chrysler lists them in the parts catalog as shown in the following image:

They were used on 1968 - 1970 Chargers. Following is a borrowed image showing one in place: