All ActivityMost RecentMost LikesSolutionsRe: Novice looking for an upgrade to Class CI too have also owned both a Ford 31ft Forest River Sunseeker and a Chevy 24ft Thor Chateau. The Ford was definitely louder and had less room around the dog house. The floor got especially hot. The Chevy had more leg room, was quieter, and drove better. They both had issues right out of the gate. The ford would die going down the road for no reason. It would then go for a while and cut out again. I don't remember the resolution. The Chevy would start fine for days. Then sit for a while and wouldn't crank, then when it would crank it wouldn't start. It ended up being the start and fuel pump relay. Evidently they don't like sitting unused. It took some time to diagnose both vehicles due to the intermittent nature of the problems.Re: Is my RV a Chevy Express 3500 or 4500?I checked the Vin Decoder. It listed it as a 3500, but it also listed it as a diesel and I've been putting gasoline in it all this time. Who do can you trust?Is my RV a Chevy Express 3500 or 4500?Hello All: I have a 2017 Thor Chateau 22B. I have been unable to determine definitively if it is an Express 3500 or 4500. I have called Chevy Customer service with the VIN and they couldn't say. I've called Thor and they couldn't figure it out. I've registered on Chevy's website and entered the VIN and it say's just that it is a Express Cutaway but Doesn't say 3500 or 4500. I've called the dealer and they said it was a 3500 but they I think they were just trying to get me off the phone. The best proof I have so far is the GVW for my RV listed on Thor data sheet matches the GVW on Chevy's website for the 3500. But I still find everyone referring to the 22B on-line as a 4500. If I go by the GVW it looks like they don't go to the 4500 until you get up to the 27 footer. So my question is does anyone know definitively what it is a 3500 or 4500, how do you tell and what is the difference. Thanks John