tntwit2011 wrote:
2013 Silverado 1500, 5.3, 3.42, 3950 RGAWR, 9500 tow rating, 1565 payload, 7000 GVWR.
2016 Heritage Glen 312 QBUD, dry weight 7690, dry hitch 765.
Reese Dual cam with 1200 pound bars.
Went across scale at 8360 with a 640 tongue (miscalculation - thought it was 840 until looking at it again this morning). 5 duffle bags, 28 board feet of 2 x 6 and 2 x 8 (leveling, stabilizer jacks) and a camera bag were added - approximately 400 lbs - or 8800 pounds wet weight.
Axle was at 3840 without weight distribution. 640 on the tongue translated into 1280 on the rear axle. If I add 300 pounds to the tongue it should add 600 to the axle or 4440 or 490 over.
Truck had 960 left for tongue weight.
Yes it's close (if weight distribution brings the axle in).
Yes there is a bigger truck in the plans, it's a matter of when. I have one short trip planned for the year and then not until next summer.
Ok, my $.02
Your TW is probably too low. If it's really 640 lbs for an 8360 lbs TT you only have around 7.5% TW. You should be between 12-15% normally (1000-1250 lbs), which would leave you enough capacity for 1-3 people before you're maxed out. If your drive isn't white knuckle then you have quite the magic combo. That is a big TT for that truck.
GL, and safe travels!