Trail Master’s 4.5-inch Flex-Joint Suspension System for the 2007-present Jeep Wrangler JK, is one of the best and simplest ways to lift and improve your Jeep’s off-road performance and reliability. The suspension system, #J4615 (2dr models) and #J4616 (4dr models) can be used with 37-inch tall tires and is manufactured from .250-wall steel tubing. Trail Master’s Flex-Joint technology provides superior strength and extended life over standard polyurethane and Heim-joint bushings.
This lift system is strong, but the Jeep’s factory Rezepa driveshafts are weak, so Trail Master includes heavy-duty front and rear drive shafts, U-joints and yokes that replace the factory shafts. The kit is also available without the driveshafts, kit #J4611 if you’ve already made this upgrade. The Jeep JK 4.5-inch Flex-Joint kit also comes with longer, Kevlar-lined, front and rear steel braided brake lines, and includes the company’s SSV shocks, which continuously adjust to various types of terrain and road conditions for a smooth ride.
Trail Master’s Flex Joint systems are tested under the most extreme conditions and are manufactured in the U.S.A. For more information on this product or the complete line of Trail Master suspension systems, contact Trail Master Suspension, P.O. Box 3450, Chino Valley, AZ 86323, (928) 636-7080. Visit them on the web at www.p-a-g.net. See our latest videos on our YouTube page. Find out more on our Blog, or see what's happening with us on Twitter.