Yes I noticed mine starting to get a brownish tint on the edges I've only hand washed my truck since I got it 25 OR 6700 miles currently but started noticing the change in color before then
I was looking to upgrade my UACs as well I went with the westcott designs pre load collar level but plan on upgrading suspension in the next year good luck on the build simple and clean is the route I like to go as well
I have 285 70 17r nitto ridge grappler on Icon rim 0 offset under its a tight fit if you let out some air give you a bit more room but make sure you have a compressor handy