Get an SUV jack, with a 3-1/2ton capacity, or one with at least a 21" lift height. 9.1 inches may be just enough to do things with out a jack, perhaps you can use some 12,000 rhino ramps for additional space. Make sure that if you get a jack, GET JACK STANDS TOO, they are very important. Costco sells a nice Larin 3-1/2ton jact for about $60, and jack stands you can get from walmart, sears, kragen.