Another tip, is not to pull upward on the trim until all the clips are released, because you run the risk of bending it out of shape. I used small pieces of a paint stick under the stainless as I worked it loose to keep it from reattaching as I worked my way to the end. Also, check the clips for deterioration or rust, and replace any that are questionable. Take your time, because if you don't, you will spend a lot of time looking for replacement parts, or finding someone to take the bend out of your moldings. If it doesn't come loose easily, start looking for hidden fasteners. GM had a habit of using very small screws and T bolts to hold moldings on,