I've thought about putting one of the aftermarket fender flares on my '87 K5 but am wondering if they are more trouble than they're worth. I don't do any real off-road trail riding or rock climbing so I don't really have to worry about hitting trees and tearing them up. I just want to see if I can keep some of the pasture pies I go through off the sides. Here are some of the questions I've been pondering; Are some better than others and/or easier to put on (Bushwacker vs XENON vs ? ) ? Do they all require metal trimming? Can they be installed along with full length running boards? Are they just going to trap dirt and water behind them and rust the fenders out (my biggest concern)? Anyone had any experiences with these ?