It will take some fabricating....I couldn't get a 2000 pound winch to fit behind the stock bumper and frame.. but that bumper design maybe able to work with some fabricating and welding.
The front bumper shouldn't be to hard to build.. The winch has to be mounted out front because of the radiator....and a small winch won't fit down behind the bumper low....
It might be the baffles inside the muffler..they break loose sometimes..if you take the muffler off and something is rattling around..that is the problem.