Ridetech Specs: Universal HD 4-Link for 3" diameter axle, weld-on. RideTech HD Universal Parallel 4-Link Kit For 3"/3.5"/4" Axle Housings Upgrade your heavy-duty truck with the RideTech HD Universal Parallel 4-Link System built for serious strength and load control. Designed for 3-inch, 3.5-inch, and 4-inch diameter rear axle housings, this weld-on kit replaces factory leaf springs with a fully adjustable air ride setup that delivers improved handling, better traction, and a smoother ride. Rated to support up to 7,000 lbs, this system is ideal for 3/4-ton and 1-ton trucks that need to stay comfortable when unloaded and stable when towing or hauling. Whether you're building a lowered street truck or a heavy-duty hauler, this HD 4-Link adapts to your load and driving style. Application Universal weld-on 4-link rear suspension system Designed for 3-inch, 3.5-inch, or 4-inch diameter rear axle housings Commonly used on 3/4-ton and 1-ton trucks Professional installation strongly recommended. Welding and fabrication required. Features Heavy-duty parallel 4-link design for strength and stability Handles varying loads up to 7,000 lbs 1.5-inch x .188-inch wall DOM link bars for durability R-Joint XL rod ends for improved articulation and reduced bind Includes Firestone 2107 air springs for reliable load support .250-inch thick steel brackets for maximum strength 2-inch x .250-inch wall bridge tube for structural integrity Ideal for lowered heavy-duty truck applications What’s Included Two 1.5-inch diameter 4-link bars with R-Joint XL rod ends Firestone 2107 air springs Air spring mounting brackets Bridge assembly and mounting structure Shocks and panhard bar kit sold separately Specifications Axle Compatibility 3-inch 3.5-inch or 4-inch diameter Link Bar Diameter 1.5 inches Link Wall Thickness .188-inch DOM Bridge Tubing 2-inch diameter .250-inch wall Bracket Thickness .250-inch plate steel Air Spring Model Firestone 2107 Load Capacity Up to 7,000 lbs Free shipping to the lower 48 states
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