So I have just completed switching over to the Bilstein 5100's in the front with a diff drop kit. I know I need to replace my steering rack bushings. My question is my 04 dc has almost 200k on it and if there are any other upgrades to the steering and suspension that I can do to imporve the longevity of the vehicle and the ride quality both on and off road and how hard are to install and where do I get them at. Also are there any easy bolt on parts to help the engine life and perfomance of the engine with this many miles on it? If there are any drive line mods or replacements I should look at include those as well. Love the forum thanks ahead for you're responses.