When a subject frame is extended, is the wheel base also extended? Ie: drive shaft, fuel lines and everything else under there. I ask because the vin says 158” wheelbase, but the ads for the vehicle...
All modern coaches will be compliant with that procedure. Prior to the mid-'00s, not all coaches were compliant at the rear frame extensions, resulting in the some reduced towing capacities.
A more likely concern is wether it was extended enough. 206" is great for a 27' coach but not for a 30' coach.