I wish I could give you more than an "If memory serves" answer, but I believe the driveshaft differs on the inline 6 and the nput shaft is different too (fine splined clutch disc?) I might be mixing my thoughts with Falcon or other than a 67, so take this with a grain of salt. Not too many 200cid with 4 speed cars out there. Pretty sure the internal ratio is different in any case. None-the-less, I believe I was successful in the V-8 conversion using the inline 6 transmissions but the end result was "less than Concours".