Technical Any ideas?

I was cleaning out my garage and came across certain things. Any ideas what these are?
Thanks
Jerry

 

Your first clue might be remembering what kind of cars you had recently. One looks to be a bulky alternator bracket, from what is a total mystery to me.

Lynn

 

Looks to be GM late 60's early 70's power steering/alternator bracket, and possibly a.c. brace...

 

OK, I’ll play, I think the first two might hang the alternator and PS pump on a 250 Chevy six. Maybe the last one goes with them too ???

 

Part numbers are GREAT.
1971-74 Chevy 250 CID Power Steering Pump Brackets OEM # 3973156 &3973157 | eBay

 

Thank you I thought so too. I’m going to list on Facebook marketplace tonight. I forgot I took a 6 out of my friends el Camino way back in the stone ages. Hope someone can use them.
Thanks
Jerry

 

The first one may be a A.I.R. pump bracket, 6 cylinder chevy maybe or Pontiac maybe?