Originally Posted by john5
wondering if this is enough truck to tow 28 to 30 ft. 5th wheel or pull type trailer.
Not even close to enuff truck for a 28 ft. 5er. My F-250 diesel was overloaded with my 25 ft. 5er. And probably not enuff truck for a 28-foot TT if by 28' you mean coach length not including hitch length.
It's a half-ton pickup, and after loading it with people, tools, ball mount and ball, floor jack and odds and ends, it will have a net unused payload of less than 1,000 pounds available for hitch weight.
If the Toy came from the factory with the heavy duty payload and towing packages, then it might have enough GVWR and GCWR to tow a 28 ft. TT, but probably not. Half ton pickups, including the Tundras, "properly equipped" to tow a TT that weighs more than 7,000 pounds are rare. Keep the GVWR of the TT down to less than 7,000 pounds, then the ability of the common Tundra to tow it safely will depend on the rear axle ratio. With 3.73 or 4.10 axle ratio, then probably no problem if you don't haul much weight in the pickup when towing.
Note that the length of a TT includes the hitch length, so the actual coach will be 4 feel shorter than the inside length of the coach. Go by the model number to determine coach length. For example the Keystone Springdale model 241RKSSWE has one slide and is 28'2" long (including hitch). But it's a 24' coach. And it has a GVWR of 7,560 so it will probably overload the Tundra. Go to the model 210BHLWE to get to a GVWR less than 7,000. It's 24 ft long but the coach is 21 ft.
Keystone Springdale | Floorplans
And the Springdale is the "economy" lightweight TT from Keystone. Other models are heavier. And most other brands of TT are heavier.
Hitch weight is usually the limiter on a half-ton pickup. Weigh the wet and loaded truck with full tank of gas, passengers, ball mount, tools, floor jack, etc. and subtract that weight from the GVWR of the pickup to determine maximum hitch weight. Divide that hitch weight by 12 percent to determine max weight of a wet and loaded TT you can tow without being overloaded. A 7,000-pound TT will have a hitch weight of about 840 pounds. So if the available payload for hitch weight is not at least 840 pounds, then don't buy that trailer.
Always use the GVWR of the trailer to estimate wet and loaded trailer weight. And use 12 percent of the GVWR of the trailer to determine wet and loaded hitch weight. Using any other numbers and you'll probably wind up overloaded when on the road.