Hey guys, Truck is 94 22re

I'm trying to track down a knock that I've had for a little while and is getting worse. A guy I know at work says it sounds suspiciously like early rod knock. It's not super loud, but I'm hoping I can replace the bearings in place if I caught it early.

Anyway, I pulled the diff and oil pan. I did see a few metallic flakes (not a lot)in the bottom of the pan, but I suspect that was from the timing chain rubbing on the guide bolts a while back.
1)There doesn't seem to be excessive play up and down on the rod bearings from my initial push pull on each rod, but there is quite a bit side to side. Is some play there normal? All four seem to be about the same.

2)What do I do next? Pull each rod cap and inspect surface?

3) Is there anyway to check the main bearings?

Thanks!