Originally Posted by Christopher Gilmer
snip.....Do I need to upgrade to a class 5 or am I concerned about nothing? I have read about these things failing on people on the road, I have found Class 5 Curts (1600 TW allowed) that bolt on for under 200 bucks new...snip
IMO, that would be $200 well spent.....cheap insurance.
Based on my personal experience with the GM OEM receiver in question (had one on my '02' 2500HD) when heavier loaded TT tongue weights (1,200lbs plus) come into play I question the integrity of the receiver to deliver repeatable TV weight transfer with a high rated WDH spring bar (1,200lbs plus). The receiver design allowed for receiver components to "flex" when the spring bars were engaged, thus the weight transfer wasn't being effectively placed through the TV frame.
Your '03' Eagle has a GVWR of 9,400lbs. Ideally you want a loaded tongue weight equal to 13% -15% of your loaded 314BHS weight, so depending on what your actual TT loaded weight is you could very easily have a 1,200lb loaded tongue weight. My '05' Eagle has a GVWR of 9,200lbs, my actual "ready to camp" CAT scale loaded weight is 8,400lbs, and I have an actual loaded tongue weight of 1,200lbs (tad over 14%).
When I engaged my spring bars, the GM OEM pin box would flex upward at least 1". Here is what this weight did to my GM OEM receiver pin box over time before I "tossed it" 6 years ago;
My upgraded after market Putnam Class V receiver, the pin box would flex upward at the most 1/8", and has been a great receiver to-date;
Even if your pin box isn't bent, the possibility of some component flexing taking place while towing with a heavy tongue weight still exists.