Guys have put new Challenger seats in E-bodies which have a tilted floor, but there is almost no room under the steering wheel to get in and out because of the height of the seat bottom at the front. You either need a tilt wheel (band-aid) or most have cut and dropped the floor pan so you can get in and have some head room. Measure from the bottom of your seat tracks to the cushion at the front and back before you commit.
