hey raul, ive towed my toy hauler with my old rig with the 8" lift and 38's and it was fine. btw, i been wanting to sell my toy hauler if your interested. its a 2004 fleetwood gearbox 26' it is the best of all toy haulers. made alot better than all the others. it also has a sweet color scheme. racing decals on the outside and red, black, and diamond plate on the inside. if you interested i can send pics. i paid $30k for it brand new and only used it about 12 times. i owe around $19k for it. just lookin to get outta it for what i owe. i could even help you with delivery.