The best advice I can give you is to make sure that the tyres are in as new condition. The brand of tyre almost becomes a personal preference. When we did our huge outback trip vehicles had a range of tyres from x-terrains, MTRs, STTs, etc. All tyres where in as new condition and we didnt suffer any punctures.
All terrains would probably be better than mud terrains, as muddies tend to get more chips and nicks from the outback roads.
If it is an option, match tyre sizes from another vehicle in your convoy so that you can share spares if need be. Also remember to adjust your tyre pressures accordingly...
Have fun, the Simpson and the surrounding deserts are awesome!
if anyone follows 4wd action they would have seen graham[ shorty gq patrol] tackle deserts and they are almost unpredictable as a ford ranger ute tryed to tackle the simpson and it rained over night and he got stuck every 5 mins with alt's.
my opinion is bfg muddies they would do the job fine and if it does rain you have the tyre capable of mud and will clear mud alot better than alt's
you have plenty of time to think about it, Simpson desert summer closure is until March 15th.
for what its worth, as someone else said, its personal choice. we did it in June, after the first lot of rain and before the second, 2 lwb patrols, rodeo twincab, and mitsi twincab.
3 different brands of a/t's, one set of bfg mt's. I was the only one who had a puncture, on brand new tyres. none of us had any traction issues, and we did some pretty adventurous stuff in the Eyre Creek, Hay River and beyond (where the 4wd action crew got badly stuck just 2 weeks before us but they went north south, we went south north.)
we did it with BFG at's a few years back no probs. One of our convoy had cheapie HT's and they were fine also. The best tips are as follows:
1. drop your tyre pressures to about 25-30 pending weight. More surface area on the ground will stop rocks from skipping or turning pointy side up under your tyre. You will also use less fuel.
2. leave it in 4wd all of the time. you will get a lot less chipping on rocky roads if all of your wheels are driving the car.
3. slow down. If you are driving your car into rocks at 100 km/hr or more, it will do more damage to the tyres. Slow down to suit the roads, and any tyre will be fine.
If you are going to drive like a lunatic, take 6 tyres and expect to bust a couple? We did not even do one puncture, but some guys that tore past us one day did 7 tyres between their three vehicles???
If you are worried about getting caught out in the mud, I have recently set up our Navara with 4 road orientated LT tyres and a hung two muddies off the back, just in case. You can always swap the muddies ont the car if the weather looks like you need it?
PS: Ring the Mt Dare Hotel or Bordsville Hotel before you go to get a report on conditions in the desert. You may not even get to cross the desert with all of the wet weather around???