Several years back my cousin purchased I believe it was a 69 Camaro rear disk brake kit for his 55 Chevy Belair. This kit was mounted to a Ford 9" rear end housing. I recall helping him with the installation. I recall trying to get the bleeder screws on the calipers to face up, however, no matter what we tried we could not get the calipers installed with the bleeder screws facing up. So, for years the bleeder screws have been facing down and are still in that position. This is ok as long as you don't have to bleed the brakes. Back then after we first installed the kit, we realized that we could not bleed the rear brakes with the bleeder screws facing down. So, we removed the two rear calipers and rotated them so that the bleeder screws faced up. We used plastic tie straps to hold the calipers in place while we bled the brakes. We also had to cut some wood the same thickness of the rotors and placed the wood where the wheel cylinders are. The wood takes the place of the rotors. This is how we got to bleed the brakes back then. My question is does anyone know if GM did in fact design calipers for the early model Camaro with the bleeder screws facing down? Like I mentioned above, we tried swapping out the left and right side calipers at that time and could not get them to mount properly. The only way we were able to get the calipers installed was with the bleeder screws facing down. I would not think that GM would design calipers with the bleeder screws facing down. But, you never know. At least we aren't aware of it. With that said, what factory position is the 69 Camaro's bleeder screw in, up or down? Thank you for your support.