Hi Pierre! That's a good question, but I'm not able to help you all the way. I myself is a newbie in the rod-world, but will give you some of the advices, I've picked up, driving the old Volvos and an A-Ford. - I would take the gear and clutch from a 544 or 210 (got a 210 PU), which is pin-connected, instead or hydrolic working. Then I should be able to keep the bellhousing from the A- og AA-motor (some people told me, the AA bellhousing is longer, and need no spacer, just another boltpattern, to fit the M40), but that is all information, I can't guarantee, because I haven't tryed it yet... - As far as I'm informed, the M46 sat in the 240, 260, 740, 760 and 940. And I've never seen it with a long shifter - that died with the Amazon, as far as I know. And like the M40-M41, the M46 should just be a M45 with Overdrive and a longer exit-axle to fit the OD... Hope my humble knowledge have helped you!