In late 2013 and early 2014 Mopar Muscle magazine did a build series where they took a wrecked late model Challenger and built it into a back halfed four link race car. I tried to find the entire suspension article, but was only able to find two pictures of the rear four link suspension. I may have some Super Stock Challenger suspension pictures (four link - tubbed) that I will share if I can find them. I am assuming there is similarity between the rear suspensions of the Magnum and Challenger since they were built on the same assembly line. The article link below mentions the suspension they used on the Challenger build.

https://www.hotrod.com/articles/2010-dodge-challenger-drag-project-track-test/