Eric, can you recover the initial information from the Great Divide Drive thread?  Like the initial map and the way point down load?

Here's a link to a motorcycle divide ride for 2015 from a touring group.  The price they are charging for participants for this ride they are arranging is $4,995.... IF you have your own bike to ride.

 http://www.rawhyde-offroad.com/divide.html

I can drive this for a lot less money!

Here's a You Tube of a Land Rover group just doing a version of the Colorado leg of the Divide Drive.  Several of the trails sounded familiar from other guy's posts.  Appears that having at least a rear locker in your truck would be needed to negotiate a couple of the trails.  It also appears having about 8" of frame clearance (minimum) would be needed for the rocky trails.  Probably 10" would be more better.  Apparently armor on the belly and rockers of your truck wouldn't hurt either.

https://www.youtube.com/watch?v=dBdnImyXHaQ

Here we go.

http://www.adventurecycling.org/routes-and-maps/adventure-cycling-route-network/great-divide-mountain-bike-route/

Route network map that also reflects the Divide route.

http://www.adventurecycling.org/routes-and-maps/adventure-cycling-route-network/overview-map-pdf/


And... just the Divide route.

http://www.adventurecycling.org/routes-and-maps/adventure-cycling-route-network/interactive-network-map/

All the trip data is located through our main page. Click on the 'events' and that info will pop up.

-Eric

The best info I have ever seen on the Great Divide Ride is over at the ADVRIDER forum.  Cannonshot did a  very detailed write up along with side trips.  He also has GPS tracks tailored to motorized vehicles.  I would suggest that you spend some time looking at his ride report.  There are several places which only bicycles can go and several others which would not be practical for a 4 wheeled vehicle.  The rail trail north of Butte comes to mind here.  The Lava Mountain ORV area and Fleecer ridge are probably two other areas that would not be worth the trouble.  Butte is a good place for mtc/resupply, so it is easy to bypass both of them.  Once you get out of northern MT, the roads and terrain open up.  The route was made for mountain biking after all.  I really do not remember much in the way of rock gardens except in extreme northern NM.  Those were small rocks that would not slow down a 4x4.  Maybe Lava Mtn? 
Another caveat is that if it rains in the Great Basin in WY or in New Mexico, it is best to stop and wait several hours until things dry out.  Otherwise, all you will do is pack your wheel wells with clay until no forward progress is made.  The mid part of the New Mexico section south of Los Alamos was extremely washed out when I rode it two years ago on a motorcycle.  Think ruts 6' wide and 6' deep.  I manhandled my motorcycle, but I am not sure what you would do with a 4x4--there is not much to hook a winch to.  Maybe someone goes out there with a bulldozer and fixes things up occasionally--it did not look like it to me though.
There are a couple of sections with no gas, so be aware of mileages.  The Great Basin in WY is one place and Southern NM is the other.     
Doing the divide route in a 4X4 sounds like a great adventure.  I will keep an eye out in case you guys come up with a route for your Zuks.  GTR maps are great for this route.
Good luck and have a great trip.
Doug             

Great info, jetdoctor!  Thank you very much. 

We realized there were portions that would not be suitable or accessible to four wheel drive trucks or were off limits to them, although personally, I do not have these all identified yet.  There will have to be a few detours off the trail route to by-pass these areas on hard ball out of necessity.

The first run will have a huge (I think) learning curve to it.  Picking up info on trail and weather conditions is important.  Certain trails being rutted 6 foot deep and wide and extreme mud conditions being great examples.  Ability to access needed resources along the way is another important issue: fuel being a huge one, water and repair parts being close seconds.

The extra input from persons experienced running the route (YOU) is invaluable. Again, thanks a bunch!

Here's a link to the forum and article (cannonshot) that jetdoctor referenced.


http://advrider.com/forums/showthread.php?t=603076

NPRECON,
To be honest, 90% of the GDR is quite easy.  The route is set up on county and Forest Service roads for the most part.  What I would do is buy the GTR mapping maps for the states that the divide ride is in.  These maps have dirt/gravel roads on them.  I would then lay out the GDR route as close as I could onto the GTR maps and detour onto roads which are on these maps.  That way, you will avoid the OHV trails, rail trails,  bike paths etc.  The GTR maps have roads on them which are maintained.  I have found this a much more reliable reference than the Garmin street maps.  Then you can build your routes for your GPS. 
Also, be aware that there are several Great Divide routes for hikers, bikers, motorcyclists, etc.  I had a rancher out in the Great Basin in WY talk me into going on the "real"  Continental Divide route over towards such and such town.  I ended up wandering around out in the desert, ran across an abandoned ranch that looked like the Manson family had been there, etc. etc.  Bad day.  There is a lot of oil and gas drilling going on with the attendant roads to service them all over MT and WY.  Some of these roads look like dirt super highways, but are not on the map.  If you follow them, you will get to the next town and fuel.
Considering that the GDR is roughly 2700 miles in length, you should make it as easy as possible, to avoid show stoppers.  Speed is critical unless you have all of the time in the world.  I would set my rig up more like a trophy truck than a crawler. 
I went back and looked at the GDR route.  Chaco, NM to Grants, NM was where the huge wash outs were located.  I had a buddy watching me on my SPOT, and I remember calling him from the Sonic in Grants expressing how happy I was to be done with that section.
Something else to think about is what time of year you want to attempt the route.  July 4 is usually a reliable time for the snow to be out of the passes.  August brings the afternoon monsoon rains, to CO and NM.  Early Sept is usually good. Late Sept could mean snow at high elevations.
I suppose that you also need to decide on what you want to see.  Glacier NP may be a better place to start than Rooseville, MT.  The Chief Joseph Hwy. may be better than the Great Basin.  Maybe Ouray and Silverton, CO rather than Steamboat Springs if you want to do the Alpine loop.
Sorry for the rambling.   You guys have lots to consider.
Cheers,
Doug             

Thank you once again for the additional information.  Time isn't a terribly critical factor to me.  I'd prefer going slower than blowing through and missing some of the unique details that I would see and want to check out.  I don't have much of an interest in most of the manmade points of interest/towns as I do the terrain and trail network. 

I'll check into the GTR maps.  Detailed topo mapping is important.  I don't care to spend an hour driving on a trail that dead ends or turns into restricted trails. 

I just enjoy reading detailed topo maps too.  GPS is great too, but I kinda prefer the challenge of using a topo and compass and then use GPS to augment and/or validate my map and compass positioning.  Paper topo maps don't require batteries either.  Insert them into a waterproof sleeve or just water proof them and they are good to go.  I guess you could lose paper maps or they could blow away.

My Tracker definitely isn't set-up as a trophy truck and it isn't a rock crawler either.  It's kinda in the middle.  Closer to stock trim.  I've just continued to build it the way (I personally think) GM/Suzuki should have offered them new, right out the door.  Higher ratio gearing for larger tires, improved suspension, a locker and armor underneath it plus some functional interior upgrades.

Again, thank you for the info and advice.