I have this set up. I did not dot the swap, I bought it that way. I thought it was the driver's side motor mount that was different, but it is just one. The 727 is significantly longer. The support has to be moved back too. Also means that mine has kind of a rigged up exhaust. You could use the 904, but then you would need a different converter or flexplate because the 360 is externally balanced. The driveshaft should be the same as a 360 powered Mirada CMX, but there weren't many of those. Potentially some cop cars had 727 trans and the same wheelbase, so those may work. Look into that. You could also measure and send out for the driveshaft, there are plenty of reputable places. Email me on or off the list if I could be of any help. Rob _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.