you cold slowly lift the car from jacking up on the rear axel,just enough to take the wheel off, grab your axel stand,pull the size pins out, place under jacking point on your sill,pull up the center piece on your axel stand,place pin in the right hole for the right hight,then slowly release your car jack.with three wheels on the car,aslong has you have the right height on your axel stand , you will be fine !!i referb alloy wheels, and have done this many a times, with no problems !! deano lfc