Disc brake swap positive camber issue SOLVED

[Mickeymotormount]

Hey guys, I recently did a disc brake swap on my '67 C20. Donor parts were from a '73-87 squarebody. After completion, I noticed positive camber without any shims. After Googling it, I saw that some members who did this swap also had the same issues. Here's what I found.

To start off, I wanted to keep the 67 as original as possible. So I used my original upper and lower control arms and front crossmember. These were in better shape anyway than the donor parts. The only parts from the donor I used were the idler arm attachment, drag link and spindles.

After noticing the positive camber, I checked the upper and lower control arm measurements compared to the donor parts and they were the same. Where the difference lied was at the upper control arm attaching bracket. Drum brakes use a bracket that is a casting. Disc brakes use a bracket that is a stamping. The original casting has shoulders at each mounting stud that are quite large compared to the disc brake stamping. There are also pads on the frame side of the casting where it bolts to the frame. These, along with the shoulders around the studs add up to the positive camber problem when compared to the square body stamping.When I switched out the casting for the stamping, my problems were solved. Check photos.