I have to agree with Larry G. on this one. I was a supplier to numerous OEM's during my career, not in the RV industry, and every part or component I provided was built to the exact specifications of the manufacturer it was being sold to. Yes, in the design process we would offer suggestions to the original OEM design to make the part easier to manufacture or sometimes make it such that it could be manufactured. If any suggestion was deemed by the manufacturer to compromise their design, our suggestions were rejected and we had to build it per specs. If we couldn't meet their specs we didn't get the business.
As long as Jayco sticks to their design specifications, I don't see Lippert or any other supplier being a problem or they won't be in business long. Remember, Jayco controls what they buy and use. If they compromise, they won't be in business long either.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof