That is a good Idea!
Bolt the yoke tight on the input transfer case shaft and have a new drive shaft made/modified with a spline joint.
Heck, even spot weld it to the input shaft.
Being a retired machinist, I could also drill and tap the input shaft and clamp the yoke on the shaft.
The drive shaft is about 5' long and has plenty of room for a spline joint added to it.
You got me thinking big time!

OK Sheriff, back to your Vanning days. Got any stories you and Kathy would like to share?

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!