I was teaching my wife how to drive the Dormobile. It is not an easy vehicle to drive. It is manual transission, and there is no synchromesh on 1st and 2nd gears, so you have to double clutch it. No power steering, so it takes a lot of effort to steer. Kelly only has about 10 hours of time in her life driving manual transmission of any type. So, in the rocky place we were in, we were jerking all over the place, and that was too much for the weak 10 spine axles. Something broke completely in the rear, and something broke partially in the front. There is still front-wheel-drive, but there is an awful banging every wheel rotation coming from the left front. You see the steering arm on the left side vibrate a lot when it happens. We were towed out of the backcountry by some wonderful AZLRO folks.
So, I am thinking of changing the transmission to a Series 3 full synchromesh. Or maybe something else.
For the axles I have several options.
Salisbury rear, upgrade front.
Series Trek Toy conversion.
Take the 24 spline axles from the RRC I am parting out, weld leaf spring mounts on them, and install them. (this is by far the cheapest option)
Install RRC axles and put Toyota diffs in them.
The last two are appealing because they give me some real nice disc brakes, and a tighter turning circle.