Okay, bit the bullet and ordered factory upper and lower rear control arms. Everything looks good but what do you guys think about this line that looks like a crack in the casting? It's not an excess slag line, it looks like a crack running pretty deep from what I can tell. I can send it back but they don't have another one. I'd have to start looking elsewhere. Interesting, they all are made in the UK. Is there lots of stress on that cross bracing? I'd assume so. I asked a suspension shop but they were indecisive. Funny, I'd bet if this was on the assembly line, it would go in a car and no one would ever know.