I was looking at a couple of motorhomes this week. Both were in comparable condition, very nice. Both were 2005 Winnegabo Adventurers. One was a 37B 37 foot with 3 slides, workhorse chassis (I was told W22), 22.5" tires, it had opposing rear slides, 44k miles. The other was and Adventurer 35 foot with a Ford Chassis, 19" tires, 2 slides, 35k miles, I don't remember the model number. Comparing the two chassis is one appreciably better as far as durability, handling etc? We like the floor plan of both but favored the 37B. The 37B was priced 18,000 more. does that make sense? Someone just posted on this or another forum that their workhorse 8.1 just blew a hole in the top of a piston at 44 k miles. Gives me pause. I posted question on another forum then I remembered there was a dedicated Winnebago board here. Thanks!