tow vehicles and trailer weights

Many of you need to be aware that some sellers I've observed on E-Bay are not very honest about what size vehicle it takes to pull their trailers.One seller told a potential buyer he could pull a 12,000 pound 5th wheel with his 1/2 ton Chevy with a 350 engine.It may pull it until the 1st big hill then it will struggle. The biggest danger is the fact that size truck is not rated to pull anything close to that big. Suspension, brakes and many other parts go into play.Get your facts together on GCVWR( gross gebined vehicle weight rating) and all other facts before buying a trailer and then being an accident waiting to happen on the road. Remember SOME sellers will say anything to make a sale. Go to a web site called "changingears.ge". I'ts very informative