Mike, that picture of the dodge tranny...you cant swap out the parts to make a married 205 could you??? Those pics you showed of the shafts, I know the dodge is longer, but could the shaft out out of that dodge tranny you refered me to could it work in a IH tranny, along with the 205 adapter, or totally different bolt pattern? I think I need to get into the tranny business...
I can't say for sure if what you propose would work steve...but when I conjured on this same concept while working with terry's tranny package I did spend some time in deep thought (and some parts interchange research) about this same thing!
On the surface, I really see no reason why it would not. The mating "pattern" on the rear of the 727 cases are all the same for the various tailhousings or transfer case adapters.
The dodge 727 with the married 205 is near identical internally to what you have right now (it does have the partial throttle kickdown valve body and associated input shaft same as the later Scout II).
So... (I know where you are going!) it might be possible to put all the dodge guts (or whatever is different) inside your existing IH-pattern 727, and convert it to a married 205 (dodge version). With that, ya can install the appropriate gearvendor setup.
So what we need to verify this is a complete dodge pullout (pre-518) version 727. Ya got one in yore pocket?? I'm sure I could come up with just the tranny and adapter portion, but all my s.s. Checks for the coming millennium are already spent.
I have at least two complete "married" 205 cases broken down into service parts (either chev or Ford, not sure which as I got 'em in pieces), along with misc. Couplers of a few different patterns. I'd have to spend some quality time with the various spicer parts lists for those to determine exactly what I got on the shelf.
Next...yore gonna suggest that I try this and install in my super-tow rig currently undergoing resurrection! I will if you will front the financing and then you can write off the fail if it doesn't work!! If it does work, then we'll go into the conversion-production bizz and sign on as a gearvendors dealer!
Or maybe terry the plastic bawl dude would donate his package to us for a trial fit and front the costs...I bet his is still on the pallet on his shop floor!
Folks have been cutting off powerglides and such for years and doing bell conversions, that is a major part of the drag race parts bizz. But all those casting for that stuff now are done from scratch and set up with proper alignment dowels and all so the centerline of the bell and main case can be established accurately...that is imperative and those tranny packages go for $4k and up depending upon the output of the motor going in front.
If someone with a complete machine shop capability and jigging cut the bells off a dodge 518 and an IH 727, then did a swap, that is certainly in the area of what high-end race prep folks do. But again...I could see an ez $4k just to build that kinda case with decent internals. For a pro, welding the case castings is very doable, the problem is alignment...and maintaining alignment while connecting the two parts!