Weird Squeaking

[BartG]

Don't know if anyone else has ever had this looking for some ideas as to what to look at. Sometimes I get a weird squeak from the truck that only occurs when it's moving. For the most part it stay at a consistent pace no matter the speed of the truck. It doesn't occur when hitting bumps or anything. It sounds kinda similar to metal on rubber sound you will hear from the body mounts if you get from fame flex on uneven terrain. It's not loud enough to be able to tell exactly where it's coming from but it kinda sounds like the passenger side rear. Any suggestions as to where to start looking?

[AgTires4295]

I get a slight creaking sound every now and then. Its to be expected from an older truck so I just lube everything in site and let it ride. Grease all zerks, spray WD40 or a similar penetrating oil on leafs, joints, brackets, mounts. Anything that may move during normal operation should get touched up. Takes 5 minutes front to rear