My current project (desert expedition/overland) vehicle is an 85 GMC Suburban 3/4 ton (now 1 ton) currently with a late model (91 IIRC) HMMWV surplus with franken-turbo setup. May one day convert to 6BT. My buddy with equivalent expedition style build 72 Suburban installed a 6BT 12V into with my help on some of the fab/machine work. Hard to beat those Cummins diesels.