Recently had the passenger front window regulator replaced. It was slow and choppy. Just had the driver rear window regulator removed and installed correctly. It didn't go down all the way. It stayed up about 1/4". Nearing the end of the warranty. As much as I like the truck my wifes 01' Ford minivan went to the shop one time for a warranty issue. This truck has been there 4 or 5 times and still has to back for another visit.