Well, it may be worth 4 grand, but how hard has it been run? If you want to use the stuff, make sure it wont require a rebuild to make it run well after a month. Think of why the guy put on a lift and bigger tires? Was the engine throttled? I looked at alot, and thought that a lift and better tires was the way to go, then I remembered to see how hard it had been run, turned out most of them had been beaten to shit.....Just somehting to think about.