clicking

Okay everyone, I am in need of your expertise. I apologize upfront for the lengthy explanation below. A couple days ago I tried to start my 02' F-250 7.3 with an automatic transmission and got no crank and no start. It sat for 5 days before this without being started and the temperatures here...

I have a 2011 250 turbo diesel with 8000 miles. When I put truck in gear a clicking/ticking sound comes from the middle/rear of the truck. It clickes three or four times then stops. It does the same thing when I give it gas, it ticks a few times then stops. I have not towed anything to see if it...