Ideal for 2000 Suburban 4wd. After struggling to push them through while lying under a car in my garage, I decided to apply a light coat of Mobil 1 synthetic grease to the outside edge and use a 3/8 inch ratchet extension to push them in. It worked. I can't believe what a difference it makes to have whole bumpers again after driving on originals that are almost gone for so long.