Itasca Motor Home
Our 4X4 HOME is a 1985 31' Itasca.
Total weight is 24,020 lbs with the 62CJ3B in the trailer. The total length with the 24' enclosed trailer measures 56'.
We did the 4X4 conversion in 2002.
It has a 60 HD front end and uses 10 bolt 19.5 wheels.
The transfercase is a 205 from a International truck.  
We used a 2 piece front driveline as the transfercase is so far back. It has a 425 hp 454 Chev with Banks exhaust.
A 475 Turbo and Gearvendor 2 speed transmission. It has a 70 HD rearend with 4.56 gears.
The 4.56 gearing is perfect for the 34" tall 265-70/19.5 Toyo tires on the front and Cooper 8/19.5 on the rear.
There is a 17" driveline between 2nd transmission and the transfercase with 2 more drivelines behind that. Total of 5 drivelines.
The transfercase shifter is beside the drivers seat and is operated by a 8' cable that works great. 
The new front bumper was built and the Warn winch was installed in Feb, 2005.
Also looking at installing a Allison transmission in the future.