I just bought a 5.9 powered blue bird with 545, and have been wondering the same thing. I have been wondering how to hang a clutch pedal, and or how to work shift linkage aways back. Perhaps linkage setup from a cabover? or perhaps mimic the old air cooled vw linkage setup with paralel bars? I have often hoped to find a 7 speed od single box by fuller/eaton for a dodge med duty swap, and have a roadranger 13 speed (5 main, dir/od and deep reduction) which could work with the bus I suppose. It would be way overkill for a dodge, probably for bus too. I am sure interested to see what anyone comes up with. Also things to ponder would be built chrysler 47 re/rh swaps as at least lots of aftermarket parts available from diesel power chasers and options for married gear vendors?. If I could find aftermarket parts or advise for 545 I'd be interested such as aftermarket high flow pump, (full line pressure not up until 2400rpm) and shift kits (orfice plates to chance shift points to favor 3k govenor springs) perhaps two speed brownie, or swap in an older 2 speed rear. Frankly I'm not seeing the 545 as a terrible tranny its viewed as an oversized 727 of sorts as no overdrive or lock up tc availible. But with middle of the road gears, makes it hard on brakes in the mountains and hard on fuel on any highway. With high low gears made available and taylorable line pressure it could become reliable and dare I say desirable? Presently I am stuck 3000 miles form home for now so my hands are tied from playing with my toys, Thankfully I finally found a forum worth trolling and tossing my 2 cents in here.