anyone on here that rebuilds mopar sure grip chunks?

Let me ask a question before something is assumed. Have you ever had the rear apart? How long have you owned the car? Are you dead certain it is a sure grip? If you bought the car and never had it apart then you may have bought something you thought you were getting. Just a thought. I'm too far away from ya but if you had the parts and a 12 pk of MGD you could bring it over and we'd handle it. Make sure it's a sure grip.
Small Block