Loud screeching/rattling noise

Alright, i have read that quiet a few other of you guys have had random noises underneath your tacos too. i have had a loud rattle unpon acceleration for a while and when i get up to a steady rpm it lightens. When i push in clutch the rattling stops and sometimes i will hear a screeching metallic noise like a heat shield or something. I just replaced both cats hoping that it would fix the prob. but unfortunately i was wrong! I still think it is within the exhaust somewhere.....
If anyone has similar prob or solution i would love to hear feedback bc this noise is driving me insane!!!!!!!!!!!!

 

dont think its clutch oriented, it makes the noise in neutral, with or without clutch engaged

 

i understand that, not sure if that is the issue though

 

yes sir, seem to be pretty tight. plan to grease them when i get back home for spring break. Im at school, away from tools lol

 

^^^this. When clutching, you're taking load off of driveshaft. They are easy to inspect and rule out.

 

May be the culprit. hopefully thats all it is. it is so hard to pin point annoying noises

 

sure is. Thanks for the suggestion!