I have 1992 Ford F-150 that was shifting rough and jerky and I hadn't had the transmission serviced in a long (years) time. They dropped the pan and changed the filter and the fluid, now it's smooth like butter. It's never felt better. They noticed the tensioner was bad and changed that, and the serpentine belt as well. These guys know what they are doing. Thanks to Cody and the Team at Saint George Transmission!