Alright I want to chime in since I got mine and did the install. So I had trouble getting the lower spacer in but once I gave it a few wacks with a rubber mallet it slid right in. I say this because I tried forever with a metal hammer and for some reason the rubber mallet did it.
My UCA's came absolutely perfect. Without a single imperfection. Install went really well and I am very happy with them. Stickers are peeling but I was going to remove them anyway.
Install took me about 2.5 hours for the first side and a little less than an hour for the second. I had trouble with the upper ball joint separating from the spindle. Tip: use a pry bar and put pressure on the upper control arm and spindle while you hit the flat side with a hammer. It'll pop right out.
Haven't gotten an alignment yet but they have clearance of the shock at full drop. Yay.
I am impressed with these. Here are some pictures. If you have install questions let me know.
Use a zip tie from the spindle to the shock so you don't stretch the ABS wire.
Here is what I'm using to lube the ball joint. I read up to get dry lube and spray them down every week or so.
Off-topic: also made these today!
I'm sorry for you guys who are having trouble with them!