[auxlr8]

So guys I don't know if I'm doing something wrong or I have some wrong parts. I've got the lower control arm and upright assembly as one piece on my garage floor and loosely looking at how the ba carrier and caliper bolt onto the upright and it's just dosnt look like it will fit. The bottom ba bolt might but the top bolt looks to short to fit on the au 3 upright and even if it did it looks like it's too far in towards the body for it to go over the disc. Am I supposed to be using the au3 bolts on the au 3 upright with the au3 carrier and then attach the ba caliper to the au3 carrier? A little confused now, any advice on what I'm doing wrong?

Cheers