Well if anyone is interested I just came back from Split Mountain yesterday (June 2nd, 2011) and it was pretty awesome... I have a few observations that I think people will appreciate.
1. The road IS NOT 2WD, I took a Chevy Metro all the way to Red Lake TH but that was a very poor decision. I got stuck twice on the return trip and honestly was surprised I made it back. The dirt road to the National Park land IS 2WD, and even for about 1 mile past that point (you'll see it's the green area on your GPS when you drive, just wait till you hit that green area, then go 1 mile further.. max) After N.P. land the road is unmaintained and barely accessible. The worst part is the sketchy areas are downhill on the way in but of course uphill on the return, so while gravity will let you roll your Metro over just about anything, going uphill over 18" rocks and drainage pipes and 2 foot deep trenches, it oddly doesn't help on the way back. All in all it doesn't help anyway, since you have to go so slow when the road deteriorates, you might as well just walk, or even better pack a mountain bike.
2. The trail is poorly maintained, but navigable. The terrain leading to Red Lake is so obvious it's hard to get lost, but that doesn't mean you can't lose the trail every half hour and spend hours bushwacking through brush and gravel (and nasty branches with nastier thorns)
3. The hike to the summit is very easy, except for 1 point, where it's very not easy. After red lake you go north for about a half mile until you get to a big bowl, then straight west until another big bowl, then a final push to the last ridgeline before the summit, THAT was quite challenging, at least for me. At the final bowl, just before the ridgeline at 13,000', you have a choice, either go to the left side of the bowl, the steeper side, but not exposed, or the right side, the "shallower" side where it is very exposed. I went right, towards a divet that looks like where most people go. You must traverse up a steep slope (60 degrees perhaps?) for 50 feet while directly below you is a cliff and certain death if you slip. Others may well find this "fun" or even easy, but I found it frightening. Keep in mind I'm moderate skills at best and the snow conditions were very much average (6 inches of powder with a very thin film of ice on top of them overlaying old hard snow) Anyway, I made the summit but I wouldn't do it again, wife and kid and all don't seem to care if I bag all the 14ers or not, just that daddy comes home.
So in short, you do not need snow-shoes at all, it's only snow above 10,000', bring a good ice-axe/crampons. It was very cold (15 degrees I'd guess but I didn't have a thermometer) and all-in-all a pleasant hike if not for the snow conditions and the steep section at the ridgeline combined with the exposure.
Hope this helps,
p.s. no pics I dropped my camera on the first day