I just found out that all that you have to do is . You have three options to go with one change the bellhousing from a borg warner m12 transmission. two use and borg warner m12 transmission but use the yoke head from the m8 onto the yoke of the m12 yoke .Three use a chryler/amc tf727 torque command transmission.Use the yoke from the m8 weld the head on to the spline of the 727transmission weld the m8 tail section onto eather transmission and that way you can keep the torque tube suspension on your classic 770 with the 287.Your rear end should be an AMC 20 to stand the torque from the AMC 360 engine with about 350 hp .last but at lease get the trany mounts.