No we havent and now have 45K.ive read the problem with the plugs were corrected in 2001. ive done 36 ft and like it,but 32 fir more places without iissue,especially shoppin areas in towns. its kinda 6 of 1 & half dozen of another. Power was fine & BTW (I never hurry up grades rpm 2000 )at 60 to 65 keeping rpm at 2000 +/- 500 rpm was 11-12 mpg on the 395 from reno to palmsprings or Fwys in So Cal.
Towed a small PU w/camper at 4500lb 4x4 & 4 on the ground with towbar.

We have just recently purchased a 2000 Rexhall Rexair 36ft w 1 slide and V10 engine. Just wondering if you have had any spark plus problems that you were worried about? Also, do you have a toad? If so, do you have any problems pulling grades? We have just begun using our coach. We love it!!