These posts are slightly longer than the stock 2004 Honda Pilot posts (maybe 1/4-1/2 inch) so both old posts will need to be removed before the new ones are installed. Once both posts are removed the overhead gate can be raised higher for installation. After this problem is fixed, the racks work fine and are easy to install. Only four stars for contacting the seller, he didn't inform me of this decision and I didn't see his mention in the instructions. I had to find it in the comments section of another product. It seems like a no-brainer, but I've mentioned this issue many times in comments on other similar products. You should at least mention it.