yeah,what 4Bbodies said-get on a level surface and take some measurements-plumbob frame points to floor,mark same[chalk]and measure every which way-stretching a string will also let you know if you have a serious frame problem-or pay a body shop that you trust.use a dremel with a cut off wheel and hang wet/damp rags around your spark area to grind those welds-work slow and steady so the wheels [you'll need 9 or 12/ 3 to a pack]won't bust