A friend at the school wants to put a turbocharged JD tractor engine in place of the blown-up six in his old F150. He asked me about making adapters to go between the engine and automatic transmission. Anyone ever seen such an arrangement?
The normal hookup for the engine is a short driveshaft with U-joints on each end between the torsion damper on the flywheel and the transmission input. That's a bit long for the truck unless the transmission is moved back and the truck's original driveshaft is shortened.
There's nothing on the back of the JD engine that's suitable for bolting the AT case to, so I'd need to make something from scratch that is highly concentric to the flywheel.
I'm inclined to decline getting involved in this project because of the complexity of the adapters involved and my total lack of experience with machining large chunks of heavy metal. Maybe seeing how someone else has done it would be helpful.
My best idea so far is to cut off the back of the Ford engine to get all the parts that mate to the AT. Then I'd cut off the crankshaft and fabricate an adapter to mate to the JD driveshaft. I'd need to do something about the rear main bearing, but at least all the big parts requiring precision machining would be taken care of.
I suppose I should add that this is just a for-fun project to see what they can do with what they have on hand. Everyone involved knows that good-running bolt-in Ford sixes are readily available and relatively inexpensive.