Are these what you guys have and are talking about?
Wheel Adapters 5475-5475HV Wheel Adapter
If so I have a couple questions before I use them. I bought a set of these and am not sure if they are going to be safe and was considering sending them back to exchange for non hub centric cause I would feel better if they fit completely over the axle and flush against the drum. The hub centric ones look to be the correct size and have a 70.3 mm bore. This is the correct bore for a regal right?? When I try them, the adapters will only go on so far and it leaves a slight space but seems significant in between the adapter and drum. Are they supposed to easily go over the axle end and fit up flush against the brake drum or is it normal for them to have a small space/gap in between the drum and the adapter?