Dodge Plymouth Truck 8 3/4 rear housing with axels and backing plates

Some measurements in the very useful thread linked below. Put it on the pickup truck forum too if you're a member. People with 80's trucks hunt these things to swap in. GLWS!
https://www.forabodiesonly.com/mopar/threads/an-accurate-8-3-4-rear-axle-width-list.365494/