So basically I am doing an overhaul on my M, swapping both the tranny and engine so I can keep it longer. My question is, when I look through LKQ they specifically say the 2008 rwd transmissions have a "thru 11/07" and "from 12/07" model and say they are incompatible with the 06 m35 rwd

edit: Also it appears the 2006 m35 rwd transmissions are actually much more expensive on average on ebay.