So I recently bought a used 2005 silverado 4.3liter V6 rwd 5 speed manual. At fist I had a hell of a time shift in to 3rd. I maybe drove 1000 miles and loud sound started. Like I was dragging my muffler or something. Changed the clutch and the slave cylinder and nothing changed. Drained the transmission and there was no fluid at all. I also noticed so needle bearings at the bottom drain. So I'm going to attempt to tear it apart and see what's wrong. Any advice, diagrams, parts lists,, videos or anything would really help me through this. I have looked everywhere and can't find anything accurate or even close. It's my only vehicle and don't have money to buy a new transmission or vehicle. Anything helps thanks.