Drove it in 2012. Much the same recollection of the road as fer2005. You should not have any problem with your rig. Road will have a lot of washboard sections and can be muddy if it rains. Plenty of good boon docking spots all the across Hyway 8.
One piece of advice is to NOT drive Hyway 8 during caribou season unless you want to see hundreds of camo wearing, 4wheeler driving, rifle toting, beer drinking, city dudes that are camped in every opening along the road. We made that mistake and saw at least 300 hunters and 2 caribou on our journey along the Denali Highway. In spite of all the hunters the scenery was well worth the drive.