Fist off it was fun going threw the pop ups and the ******** to get on this forum ! Really? Does it need to be that ****** difficult to get on a something to ask people for help that have been threw it already?? Have a 2011 ford raptor rides like a bag of ****** shit!; And replaced the shocks same shocks.. rides like a bag of ****** shit!??? Wtf???
Seriously, you start out like this and ask for help and with NO INFO for us to go on. Congrats- you take ******* to a new level! If you hang around here with that attitude you better have skin tough as steel and very thick.
Now to fix your problem- from the above info, it appears you have a bad hanger bearing to your muffler.