LS1 Rear brake problems

[tyson__91]

When putting my rear brake setup on my 68 Camaro's factory 10-bolt. I ran into a problem with the rotor hitting the out side of the caliper basket (seen in the picture attached). It could be fixed by spacing the backing plate out from the axle flange but is this something people usually run into while doing this swap. By the way you guys talk everything just slides on. Thanks for your help.