DASH PAD

Comes as bonded metal frame with studs. Contact www.thedashpadfactory.com . They are in San Antonio tx and will give you money for your core. I believe they are 3/8" stamped nuts up inside, and 1/4" self tapping screws on the lower corners.
Stay away from that business. Search my posts on them. No good!!!!!

https://www.forabodiesonly.com/mopar/threads/beware-dash-pad-factory.500346/