Squeeling poverty hub caps??

Yeah, strange, I thought the lug nuts were not tight. Popped the caps, re-torqued and went for a ride.
No noise. Put the caps back on and the noise was back.
Just a thought,what disc brakes you using? the 73 up Mopar sliding caliper,if the pads are not tight will squeek.
You can bend the ears on the outer pad or use brake pad glue. Had a Charger that did that.
Good point, this truck sits on a 81 Dodge truck 1/2 ton chassis with those brakes BUT if it were the bads the noise would go away when I apply the brakes and there is no change plus I do not here the noise when the truck is jacked up and I spin the wheels, I think its the caps.