If this swap is as easy as removing my 18 spline box and installing your 18 spline 5 speed box, count me in. Will the speedo cable, trans crossmember mount, and reverse light switch wiring needs any mods? Will the trans length be the same so that no drive shaft mods are needed? I absolutely refuse to modify any part of my stock floor pan to accomodate a swap of this type. This would be going into my 68 Charger, 426 Hemi with stock exhaust. If all I have to do is purchase the trans and some fluid it seems like it may be a no brainer. Sounds like the sooner you get all the engineering and testing done the sooner the market will be flooded with 18 spline 4 speed hemi boxes.