Well, my husband called Toyota and found out that even though the Tacoma is V6, 4x4 and is an SR5 with a TRD package (off-road package), it still is rated for towing at 3500 lbs because it does not have a towing package. All the towing numbers are so confusing to me. I thought if I listed what I know about our camper and our truck, maybe you guys could help me out. The weight of the truck empty is 3705, the weight of the camper empty is 2800 lbs, we figured probably around 700 pds for all passengers, gear, clothes etc. that we would be taking. Ok, so we can tow something that weighs 3500 lbs and the camper is 2800 plus probably 200-300 lbs extra loaded (not sure on that) so we have around 400-500 pds to spare. As for the combined weight of the truck and camper fully loaded, we would be around 7205 and the truck is rated at a max. of 7500. What do you think about all the numbers. Are we cutting it close at what we would be towing? Someone mentioned that we would not be towing in hills in Indiana but we would like to go somewhere like the Smoky Mts. so I don't know if that would be possible.