727 Overdrive

inkjunkie said
The tunnel on a GTX is quite a bit bigger than an A-body. Looks like some sheet metal work was necessary on this car http://www.moparts.org/Tech/Archive/auto/28.html was I believe was a Dart....just to give you an idea on how much smaller an a-body tunnel is the trans that is in my car fit into an e-body with out any surgery at all.....another 518 swap article into an a-body http://www.hotrod.com/howto/hrdp_0706_hemi_swap/photo_07.html

This topic is getting thrashed around alot. I've seen articles on thiw topic and the big question is 'Does the floor need to be cut?' My question is why? Why would the hump have to be cut, Chrysler put the same trannies in all cars, 4 speed, 904 or 727. Why would the hump be bigger from B body to A body to E body if a 4 speed or 727 would go in it? The mount locations didn't change (just bolt patterns fron BB 727 to SB 727 and the bell housings)