This cover fits my 2024 Trail Boss Colorado fine, but the left side latch doesn't work properly. The latches on both sides latch ok when closing the cover, but when unlatching to open the cover, the left side won't unlatch unless the right side is unlatched first. It looks like there is not enough tension on the left side and it is not adjustable. The cover is square with the bed within 1/8". I had this same cover on a 2017 Colorado and it worked fine and held up great for almost 8 years.