There were really just 2 Class A Chassis makers 40 years ago. Chevy/GMC and DODGE. Dodge dropped out in 1979 NOT because it was not profitable, but if anybody was around back then the, COMPLETE Dodge/Chrysler company was BANKRUPT. They could not afford to continue the Class A chassis which they had 3 models. So, GM became the Chassis supplier, which was good news to GM. Then Ford and Izuzu(Diesel engine on a Chevy chassis) slowly started to enter the Class A market. Izuzu/GM only for about 1 year. Then Ford and GM went head to head. GM ALWAYS had a better steering system than the Ford I Beam. Once you got the FORD aligned correctly( for some reason shops had a hard time doing this), it would handle as well as Chevy. Ford then came out with a better heavier duty Class A chassis and GM sold to Workhorse and went out of the business. Workhorse could not maintain the market and went under in the RV chassis market and that left Ford for the remaining Gas market. Due to the LARGE number of RV'ers that want a Diesel, the Gas Motorhomes are not that many. People forget that up until about 1998 and up, the only real motorhome power was a Gasoline engine. VERY few Diesels due to cost. So, the Gas Class A motorhome market is a lot smaller and Ford has filled that market size. That means nobody wants to spend hundreds of millions to design a Class A gas chassis for the existing market and try to beat out Ford. Doug