It sounds like maybe you have a used coach. I thought that WBGO went with the Lippert jack leveling systems in recent years??? If I'm wrong so be it.
We have the Lippert LCI system and just had the entire pump assembly replaced. We only have 19,000 miles on the coach and probably no more than 100 lifts on the system.
When a coach is lifted by the jacks they ALWAYS are supposed to work in pairs. That's two fronts, two rears two on the left side and two on the right. That is supposed to prevent twisting of the frame and subsequent broken windshields.
I know that as I'm lifting our coach one of my jacks was not grounding as I thought it had. When doing the manual lift I bring the fronts down first. I can feel both of them hit the ground. Then I do the rears but can't tell as easily if they have grounded since I'm way up front. If in fact one is not grounding the potential of twisting the frame becomes greater.
I was also told that the WBGO front cap design with the steel frame around the windshield is much safer and better for the windshield.
We had a 1999 Dutch Star by Newmar and after driving down a very bumpy entry road into a CG about 2 hours later the entire windshield broke like it was hit with a bat. I drove very slowly over that road but i guess it was just way to much.
TeJay Auto Instructor/4-yrs USAF/ Liz: RN/ WBGO 2014 Vista 30T/ F-53/CHF/5-Star/Koni * Bella & Izzy * Golden /Cocker mix/ Louie The Cat* All Retired