The 2004 Prevost chassis is upgraded from the earlier ones,the front axle is rated at 18,000 LBS.and these models have 365 tires,I have owned a 2001,2005 and a 2008 there is a distinct difference in the 2005 verses the 2001 in driving and ride.I really like the XLII series and do not have any time behind the wheel of a H3.
I had a 1994 Prevost that I just traded in for 1997 Newell, the Newell rides better and handles better then the Prevost, I am also getting 7.5 to 8mpg and I got 5 or 6 with my 40 ft. Prevost.