Revised GVWR after axle upgrade??
We have a 2014 TT that came with two 3,500 lb axles/springs and very little payload capacity. By the scales the axle/springs run at 96% of capacity at trip weight and within the GVWR. The springs w...
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thanks for the replies so far.
One of the early replies indicated that the axles, springs, and frame had come as a "matched set" from the factory and that perhaps I had screwed that up. I submit that a 30'x8'x12' box weighing almost 4 tons that is matched to a suspension system running at 96% capacity as it sits in the parking lot is not a match made in Heaven. I cringe when I think about the dynamic forces as I drag that around the mountain curves in the Smokeys at any speed.
DODGE GUY, thanks for the research you did. My frame is indeed an 8" I-beam, and the tongue is mounted to the bottom of that I-beam frame. The tongue is a 6" x 2" box beam (formed not extruded), and surprisingly they have added flat plates between the tongue structure and square frame to weld to and minimize those stress concentrations. Now you have me intrigued. Next time you are under there, see what the height is of your frame I-beam??? I would suspect at your length it is 10 or 12". And at 10 years old, I wonder if yours is made fundamentally stronger than mine, back before greed just over-whelmed all other motives for manufacturing?
The suggestion of putting extra weight in the center over the axles is also intriguing, and an angle I had not considered. ON the passenger side of the middle we have the kitchen and most of the cabinets, and on the drivers side we have an extra long/deep slide, maybe 30" x 15' (couch + dinette). Plenty of places under the couch and dinette seats to pack stuff, but is there a weight/load consideration for what goes onto that big slide???
One of the early replies indicated that the axles, springs, and frame had come as a "matched set" from the factory and that perhaps I had screwed that up. I submit that a 30'x8'x12' box weighing almost 4 tons that is matched to a suspension system running at 96% capacity as it sits in the parking lot is not a match made in Heaven. I cringe when I think about the dynamic forces as I drag that around the mountain curves in the Smokeys at any speed.
DODGE GUY, thanks for the research you did. My frame is indeed an 8" I-beam, and the tongue is mounted to the bottom of that I-beam frame. The tongue is a 6" x 2" box beam (formed not extruded), and surprisingly they have added flat plates between the tongue structure and square frame to weld to and minimize those stress concentrations. Now you have me intrigued. Next time you are under there, see what the height is of your frame I-beam??? I would suspect at your length it is 10 or 12". And at 10 years old, I wonder if yours is made fundamentally stronger than mine, back before greed just over-whelmed all other motives for manufacturing?
The suggestion of putting extra weight in the center over the axles is also intriguing, and an angle I had not considered. ON the passenger side of the middle we have the kitchen and most of the cabinets, and on the drivers side we have an extra long/deep slide, maybe 30" x 15' (couch + dinette). Plenty of places under the couch and dinette seats to pack stuff, but is there a weight/load consideration for what goes onto that big slide???
