2012 Landmark San Antonio Frame Flexing

pressure_welder wrote:
-kakampers.

That is definatly better than most, although still far from ideal. Theres still no way an Ibeam should be used, especially in that length. a 30ft +/- Ibeam literally becomes like a piece of spaghetti and being severely dynamically loaded the weak flanges/web are able to twist and flex as the origional post has stated. Its a domino effect, once you start flexing/twisting, the horrid welds from the factory eventually fail. or you have the terribly thin material either cause cracking or full out tearing. I have close family friends with a 2012 cougar 30ft, lippert ibeam frame, the rear bumper ripped off and smashed the spare tire through the back of the camper, AND on the same trip, the structure that holds the pinbox completely failed at the welds and crushed there brand new trucks box. When i diagnoised/fixed the pin box for them as they didnt trust the dealer, the structure thats aparently rated to support 16,000lbs according to the sticker on the pinbox was made out of 2"x2"x less than 1/8" thick, and the welds were so bad i took pictures and sent them to Lippert asking how they could sleep at night putting out that quality! I promise i dont mean to sound arrogant, but i wish i could have some of you fellas/ladies in the shop to show you just what i mean.

I understand your concern, but I can tell you our Bighorn was on the same frame, except the newer version in the Landmark has added large gussets supporting the upper deck to reduce flexing, and we put over 80,000 miles on the Bighorn with NO frame or weld issues. We did have a few busted springs and a torn spring hanger (the weld stayed fully intact, the hanger itself tore)...not bad for what we put her through...in our opinion'