By the most literal interpretation of "bolt up," meaning that you just bolt things on, no cutting, no grinding, no clearancing etc, there is no such thing for any of those older cars. I can't tell you exactly what will be required for your '56 but expect it to l be more than simply bolting things up.
If the input shaft length is sufficient, it will bolt up to the engine. It will need an adapter. If the Jeep T5 bolt pattern is unique, it will probably have to be a custom made adapter.
Lawrenceville, GA