{"product_id":"superpro-trc498-fj-cruiser-4runner-upper-trailing-arm-kit","title":"SuperPro 10-14 Toyota FJ Cruiser \/ 10-23 Toyota 4Runner Upper Trailing Arm Adjustable Kit","description":"\u003ch4\u003eDial In Wheelbase and Pinion Angle With Full Off-Car Adjustability\u003c\/h4\u003e\n\u003cp\u003eThe SuperPro TRC498 heavy duty upper trailing arm kit is built for the Toyota FJ Cruiser and 4Runner. This set gives you a wide adjustment range to correct wheelbase and rear pinion angle after a lift, while SuperPro's high-articulation lifetime bushings improve durability and wheel travel over the factory rubber bushings. The result pairs off-road capability with on-road refinement, giving you the ability to fine-tune your rig's suspension geometry for better ride quality and control.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOff-car adjustable from 302mm minimum to 337mm maximum for pinion angle correction\u003c\/li\u003e\n\u003cli\u003eSuperPro high-articulation lifetime bushings replace worn factory rubber bushings\u003c\/li\u003e\n\u003cli\u003eCorrects wheelbase and pinion angle changes caused by lift kits\u003c\/li\u003e\n\u003cli\u003eImproves off-road wheel travel and articulation\u003c\/li\u003e\n\u003cli\u003eMaintenance-free bushing design\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on fitment at factory mounting locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2014\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eFJ Cruiser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2023\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eSR5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2023\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eTRD Off-Road\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2023\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2023\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eTRD Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSuperPro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eTRC498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eSPRTRC498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eNot published by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eRear, upper trailing arm, adjustable kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushing Material\u003c\/td\u003e\n\u003ctd\u003eSuperPro polyurethane, high-articulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Range\u003c\/td\u003e\n\u003ctd\u003e302mm minimum to 337mm maximum, off-car adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer limited warranty against defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 x SuperPro TRC498 adjustable upper trailing arms\u003c\/li\u003e\n\u003cli\u003eIntegrated high-articulation bushings\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout SuperPro\u003c\/h4\u003e\n\u003cp\u003eSuperPro has engineered performance suspension components since 1972, specializing in polyurethane bushings and suspension hardware designed to improve handling, durability, and control while maintaining daily drivability. Their components are developed and tested to meet or exceed OEM performance standards across daily drivers, overland builds, and dedicated off-road rigs.\u003c\/p\u003e\n\u003ch4\u003eRelated Parts on Our Site\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/suspension\"\u003eShop Suspension Components\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstrong\u003eWhat is the TRC498?\u003c\/strong\u003e\n\u003cp\u003eThis is a SuperPro heavy duty adjustable upper trailing arm kit for the Toyota FJ Cruiser and 4Runner, designed to correct wheelbase and rear pinion angle while upgrading to high-articulation bushings.\u003c\/p\u003e\n\u003cstrong\u003eWhat is the adjustment range on this trailing arm?\u003c\/strong\u003e\n\u003cp\u003eThe TRC498 adjusts off-car from a minimum of 302mm to a maximum of 337mm, giving a wide range for pinion angle and wheelbase correction.\u003c\/p\u003e\n\u003cstrong\u003eDo I need both the upper and lower trailing arm kits?\u003c\/strong\u003e\n\u003cp\u003eFor a complete pinion angle correction after a lift, most installers pair this upper kit with the SuperPro lower trailing arm kit, though the upper arm alone can be used for partial adjustment.\u003c\/p\u003e\n\u003cstrong\u003eDoes this kit work on a stock height truck?\u003c\/strong\u003e\n\u003cp\u003eYes. The high-articulation bushings improve durability and off-road travel even without a lift, compared to the factory rubber bushings, which wear and soften with age.\u003c\/p\u003e\n\u003cstrong\u003eIs this a direct bolt-on replacement for the factory trailing arms?\u003c\/strong\u003e\n\u003cp\u003eYes. It bolts into the factory mounting locations on the Toyota FJ Cruiser and 4Runner without any drilling, cutting, or fabrication.\u003c\/p\u003e\n\u003cstrong\u003eDoes the bushing design require maintenance?\u003c\/strong\u003e\n\u003cp\u003eNo. The bushings are maintenance-free and do not require grease fittings or periodic servicing.\u003c\/p\u003e\n\u003cstrong\u003eHow do I know if my pinion angle needs correcting?\u003c\/strong\u003e\n\u003cp\u003eCommon signs include a vibration that increases with speed, driveline clunking, and premature wear on U-joints or the carrier bearing after installing a lift or leveling kit.\u003c\/p\u003e\n\u003cstrong\u003eCan this be installed with basic hand tools?\u003c\/strong\u003e\n\u003cp\u003eYes. Installation requires common hand tools and a way to safely support the rear axle. No special tools or press equipment are required.\u003c\/p\u003e\n\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRaise and safely support the vehicle by the frame, allowing the rear axle to hang free\u003c\/li\u003e\n\u003cli\u003eRemove the factory upper trailing arms from the frame and axle mounting points\u003c\/li\u003e\n\u003cli\u003eAdjust the SuperPro TRC498 arms off-car to the target length before installation\u003c\/li\u003e\n\u003cli\u003eInstall the adjustable upper trailing arms using the supplied hardware\u003c\/li\u003e\n\u003cli\u003eTorque all hardware to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003eLower the vehicle and check driveline angle with a digital angle finder\u003c\/li\u003e\n\u003cli\u003eRecheck hardware torque after the first 100 miles of driving\u003c\/li\u003e\n\u003c\/ol\u003e\n","brand":"Superpro","offers":[{"title":"Default Title","offer_id":46296881135695,"sku":"SPRTRC498","price":258.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/trc498-superpro-fj-cruiser-4runner-upper-trailing-arm.webp?v=1785426703","url":"https:\/\/www.blackopsautoworks.com\/products\/superpro-trc498-fj-cruiser-4runner-upper-trailing-arm-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}