Dodge Ram Serpentine Belt Pulley

My Fan Belt Pully Is Loose. I Can Shake It Back And Forth. Theres Not A Bolt That I Can See To Tighten It To The Block. How Do I Tighten It

Cannot Find Replacement Hardware (bolt, Spacer, And Dust Shield) For The Upper And Lower Idler Pulleys. Need Proper Bolt Specs... Pictures...

There Is A Bearing Noise That Has Developed At The A/c Compressor Pulley. It Seems To Happen And Stay Steady At All Rpms With The Ac On...

When Vehicle Is Running You Can See The Belt Not Sitting Correctly On The Far Bottom Pully. When Vehicle Is Of It Sits Correctly.

I Began To Hear Screeching In My Engine With Occasional Clicking At Random Times. I Thought The Screeching Was The Belt And Replaced It...