I went to walmart and bought a 2 ton Torin Jack. I put it under the suspension cross member found under the hood of the suv( I wanted to change the oil) and I had alot of difficulty putting the car up. I stopped because I didn't want to break something. The suv is about 3 tons gsw.... Should I go ahead and get a 3 ton Jack? And I can use these to get under the car right? I have Jack stands yes. Thanks guys