Need help identifying parts

[tj 413]

I went to the self-serve car wash to clean under my truck in preparation for getting the undercarriage sprayed tomorrow. I didn't really pay attention to what was on the ground when I pulled in and started spraying. I then noticed these items near/under the truck, I have zero idea what they are and used for and not 100% certain they did come off my truck and were already there when I pulled in. Any help appreciated.

 

[Bent77]

Looks like new truck stuff
What year is yours?

 

[tj 413]

91

 

[Fastereddie]

I don’t recognize them as any squarebody parts.

 

[nvrenuf]

I agree, they don’t look like square body parts.

Approx diameter of the ring?

 

[kennyw]

Nothing like that comes from a squarebody.

 

[Blue85]

That tall one looks like an oil fill adapter. The end you have up keys into the valve cover and the oil fill cap goes in the other end. You'd think somebody would miss it. Hopefully they weren't pressure washing the engine with that missing.

 

[tj 413]

I agree, they don’t look like square body parts.

Approx diameter of the ring?

4 inches

 

[tj 413]

Glad to hear that they didn't fall off my truck, lol....next time I take it to the wash, I'll pay attention to the crap on the ground