Check the listing for details. CURT 28304 Bracket Mount Topwind Swivel Jack. Condition: New. Listed at 61.18 USD. Universal Bracket Mount Topwind Swivel Jack (28304) by CURT®. Lift Capacity: 2000 lbs. Swivel Mount Type: Topwind. Travel Length: 15". Package Type: without Package. In CURT goal of being your best source for all things towing, the CURT line of trailer jacks is designed with care and manufactured with pride. CURT jacks are made with quality to promote the life and function of your trailer, and they come in several different styles to accommodate your needs, whether you are a frequenter of the boat landing, the campground, the racetrack or the field. CURT swivel jacks get their name from the pull-pin swivel feature that allows the jack to pivot on its mounting bracket and swing up and out of the way for travel. CURT swivel trailer jacks are broken into two categories: pipe mount and bracket mount.