I love powder coated chassis stuff, with the exception that mating surfaces and threaded areas that are coated are a hassle to fit together without a lot of sanding, drilling and thread chasing. Just be sure the coater knows that clevis holes are plugged and that the threads and inside sides of the clevis where it fits the arms are taped with silicon tape before coating. Also, the mating surfaces of the backing plates should be taped as well or, if coated, only thinly . The powder is usually so thick that the backing plates will be held off the spindles or rear axle housings so far that the drums will rub them, unless you spend tedious time sanding it all down before fitting them. I also do not like to coat the mating surfaces on the radius rods or axle housings, as once the powder wears off, you'll end up with loose radius rods and backing plates.