After 30 years of towing trailer I should know this, but I cannot find the Gross combination weight rating for my '94 GMC K1500 Suburban. One website said the burb can tow 10,000 lbs, that would be a huge trailer for a half ton, so that would seem to be the GCWR but it doesn't say that. The sticker on the door lists 7200 lbs as the GVWR. I'm just under 6,000 so okay there. Our 26' TrailCruiser weighs about 5300 lbs, way under the supposed 10,000 lbs towing capacity, but that seems to put me over what I think is the GCWR. On the way home from our recent 4,000 mile trip, I had the entire unit weighed at a certified scale and combined, it was 11,300. I think I'm 1,300 lbs over weight, right?