What is the best machine for off-camber log hauling?

[polaris_wanna_be]

I currently have a 2000 Grizzly 600 and am in the Colorado mountains at 9000ft.
The Grizzly has the following issues
1) Carburetor - runs okay sometimes but mostly bad - has been rejetted and serviced several times.
2) Solid Rear end - slides when hauling logs or a trailer on the side of a mountain.

So, I want a bullet-proof log hauler that will pull logs or trailers of logs on the side of a mountain. I thought that EFI would be important for reliable starting/running at any altitude (but more stuff to go wrong) and independent rear suspension would be best while driving on the side of a mountain.

Also, is there any machine that would have the equivalent of an open differential so that when one rear wheel began to slip, the entire rear end would not slip (with a selectable locker)?

I was considering a 2005 Sportsman 500 and wanted to gather the forum's opinion.

Thanks,
Steve

[Gulf550]

To answer the last part of your question, about the selectable locker, you should look at the 550 or 850x2 they have whats called Versatrac Turf Mode which is like a selectable locker.

[blueline15]

I would look at a 2008 or newer sportsman 6x6 for this job. Just like the one in my avatar Also, the older 500 and 800 x2 and touring will also have the turf mode.

[polaris_wanna_be]

Thanks for the replies and advice.

So, does something like 2007 Polaris Sportsman X2 800cc Winch/Plow/deluxe package fit the bill?

Turf mode, longer wheelbase, EFI...