Bought a 71' Charger R/T with spare E-body rear....can I use it?

[NateCharger]

Bought a 71' Charger R/T with a 9.25 rear installed from a 75' Imperial (with disc brakes). The car came with a spare 8.75 rear with 11" drums. I measured the perches and...its from an E-body. Can I even use this rear? What needs to be done to make it work?

 

[NateCharger]

Found my answer! This rear gives me more wheel/tire options! http://www.hotrod.com/how-to/chassis-suspension/mopp-0212-swapping-rear-axles-and-spring-pads/