"Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream." ~Mark Twain
Thanks, OdyPilots! Yes, that's sort of how I look at life. I fight to be practical at the same time. It's my deep belief that only dreamer's dreams come true...
Computer crashed, couldn't get back. I did a poor explanation in original 1st post because I was half awake. Yes, I was picturing the outrigger wheels mounted on swing arms with springs, very similar to the stock Omni real axle setup and what you describe. They would be mounted as high as possible, only contacting if the thing lifted up enough to roll, otherwise tucked up out of the way & almost invisible behind bodywork. Thinking of a wheel/tire size like those weird little spare tires for cars, you know? That kind of size should lessen the spinout thing. It may be entirely impractical and of course that's why I threw it out here.
I'll take a close look at the front drive differential, LiveWire, might be something I could do. But some Omni have a two piece axle on one side, others don't. The two piece has a Cardan midway. Thinking to set it up on one side similar to stock 2 piece axle, but use a carrier bearing just before where first Cardan would be, with carrier bearing solid to frame. Can't likely use a stock front axle, but have a splined shaft made up for this 1st piece, then inserted into outer axle. The rest of the axle with double Cardan can operate the same as the other side that has a 1 piece axle.
I would then have that stub shaft [axle] coming out of diff and use that for PTO drive, to chain drive to rear, with limited slip between that stub shaft drive and rear wheel. Limited slip diff for right/left front wheel drive. Rear drive selectable, only for use at lower speeds offroad most likely, or in loose sand or serious snow, otherwise free wheeling rear.
Well see how it all turns out.
Thanks, guys!