I guess it just sounds like alot of unnecessary lift for that size tire. With 10 inches of total lift the center of gravity would be about shoulder high on your average man, and thats with37'' tires. I'm not trying to criticize but in my opinion that is too tall. A local friend runs a sas taco with lots of lift and 3'' body lift- It works and good too. his body/frame flex are causing his body bolts to pull through the body pan and turn the flat washers into cones. Driving style makes all the difference but that high center of gravity mixed with a bad line caused this.
http://i98.photobucket.com/albums/l268/gittinit/2006TO017.jpg