Coys Wheels Fitment Problem

[Toxic Orange]

Hoping to get some thoughts from those with Coys wheels. I am in the process of installing my new set of C5 Coys. Got the front on no problem, guess the corrected the whole center cap thing. My problem is with the rear. I can't get the wheel to seat up against the brake drum, it hits on my axle center too soon. Its as if my drums go on too far or the center axle (round part in the middle) sticks out too far. Anyone else experienced this and have any advice how I should proceed? Thanks