{"product_id":"energy-suspension-90-95-toyota-4-runner-2wd-4wd-black-hyper-flex-master-bushing-set","title":"Energy Suspension Hyper-Flex Master Bushing Set – 1990-1995 Toyota 4Runner 2WD\/4WD | Black (8.18103G)","description":"\u003ch3\u003eEnergy Suspension Hyper-Flex Master Bushing Set – 1990-1995 Toyota 4Runner 2WD\/4WD | Black\u003c\/h3\u003e\n\u003cp\u003eRestore the handling, steering precision, and chassis integrity of your 1990–1995 Toyota 4Runner with the Energy Suspension Hyper-Flex Master Bushing Set — a comprehensive polyurethane bushing replacement kit that covers the full suspension and chassis of both 2WD and 4WD 4Runner variants. Energy Suspension’s Hyper-Flex polyurethane outlasts factory rubber 5-to-1, resists oil, coolant, UV, and atmospheric degradation, and delivers a meaningful improvement in suspension precision and chassis feel — whether you’re building a daily driver, a weekend trail rig, or a high-mileage 4Runner restoration. Made in the USA.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaster bushing set — comprehensive kit covering the full suspension and chassis bushing requirements for the 1990–1995 Toyota 4Runner (2WD and 4WD)\u003c\/li\u003e\n\u003cli\u003eEnergy Suspension Hyper-Flex polyurethane — performance-grade polyurethane formulated for superior durability and handling improvement over factory rubber\u003c\/li\u003e\n\u003cli\u003eBlack finish — clean appearance that suits both stock and modified 4Runner builds\u003c\/li\u003e\n\u003cli\u003eOutlasts rubber 5-to-1 — Energy Suspension’s Hyper-Flex material significantly outperforms factory rubber in longevity\u003c\/li\u003e\n\u003cli\u003eChemical and UV resistant — impervious to oils, coolants, UV exposure, and atmospheric pollutants that degrade rubber bushings\u003c\/li\u003e\n\u003cli\u003e2WD and 4WD compatible — covers both drivetrain configurations\u003c\/li\u003e\n\u003cli\u003eMade in the USA — all Energy Suspension Hyper-Flex components are manufactured in America\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePerformance Benefits:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestored Suspension Precision:\u003c\/strong\u003e Polyurethane’s higher durometer eliminates the bushing deflection that causes vague steering, body roll, and inconsistent suspension geometry on worn rubber bushings — restoring the 4Runner’s handling to better-than-new precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Off-Road Capability:\u003c\/strong\u003e Firmer bushings maintain suspension geometry more consistently under the articulation and lateral loads of off-road driving, improving wheel control and chassis stability on trail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Term Durability:\u003c\/strong\u003e Hyper-Flex polyurethane resists the oil, coolant, UV, and ozone exposure that causes rubber bushings to crack, harden, and fail — outlasting factory rubber 5-to-1 in both street and off-road use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Refresh:\u003c\/strong\u003e Replacing all bushings simultaneously ensures consistent compliance characteristics throughout the suspension — no mismatched old rubber and new polyurethane feel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Chassis Flex:\u003c\/strong\u003e Firmer body and subframe bushings reduce the chassis flex that contributes to body roll and structural vagueness on aging 4Runner platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Energy Suspension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 8.18103G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Hyper-Flex performance polyurethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Type:\u003c\/strong\u003e Master bushing set (complete vehicle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrivetrain:\u003c\/strong\u003e 2WD and 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 1990–1995 Toyota 4Runner\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment Information:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1990–1995 Toyota 4Runner\u003c\/strong\u003e — 2WD and 4WD variants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Verify your specific year and drivetrain configuration before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Professional installation strongly recommended — full bushing replacement requires suspension disassembly and a press for most bushing locations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Required:\u003c\/strong\u003e Full alignment required after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s Included:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set of Energy Suspension Hyper-Flex polyurethane bushings for the 1990–1995 Toyota 4Runner (2WD\/4WD) — all suspension and chassis bushing locations\u003c\/li\u003e\n\u003cli\u003eEnergy Suspension grease for bushing installation and lubrication\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation strongly recommended — most bushing locations require a hydraulic press for removal and installation\u003c\/li\u003e\n\u003cli\u003eClean all bushing housings thoroughly before installing new bushings\u003c\/li\u003e\n\u003cli\u003eApply the included Energy Suspension grease to all bushing surfaces during installation to prevent squeaking and binding\u003c\/li\u003e\n\u003cli\u003eFull alignment required after installation — do not skip this step\u003c\/li\u003e\n\u003cli\u003eAllow bushings to settle for 500–1,000 km before final alignment check\u003c\/li\u003e\n\u003cli\u003eRe-torque all suspension fasteners after the settling period\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePolyurethane vs. Rubber Bushings:\u003c\/h4\u003e\n\u003cp\u003eFactory rubber bushings are designed for comfort and noise isolation — their compliance absorbs road and trail vibration, but also allows suspension components to move slightly out of their intended positions under load. On a body-on-frame 4x4 like the 4Runner, this compliance accumulates across multiple bushing locations, contributing to steering vagueness, body roll, and the “worn out” feel that high-mileage 4Runners are known for. Energy Suspension’s Hyper-Flex polyurethane is significantly firmer, maintaining suspension geometry more accurately under load while still providing enough compliance for street and trail use. The trade-off is a slightly firmer ride and potentially more NVH transmission into the cabin — an acceptable compromise for any driver who values handling precision and long-term durability over isolation.\u003c\/p\u003e\n\u003ch4\u003eThe 1990-1995 Toyota 4Runner Platform:\u003c\/h4\u003e\n\u003cp\u003eThe 1990–1995 Toyota 4Runner (N80\/N130 generation) is one of the most capable and beloved 4x4 platforms in Toyota’s history — a body-on-frame truck-based SUV with solid front axle (pre-1990) or independent front suspension, a proven 3VZ-E or 22R-E engine, and the legendary Toyota reliability that has made these trucks a staple of the overlanding and off-road community. As these 4Runners age, rubber bushing degradation is one of the most common causes of handling deterioration and chassis vagueness. A complete Energy Suspension Hyper-Flex master bushing refresh is one of the highest-impact restoration and performance upgrades available for the platform.\u003c\/p\u003e\n\u003ch4\u003eWhy Energy Suspension?\u003c\/h4\u003e\n\u003cp\u003eEnergy Suspension has been manufacturing polyurethane suspension components in the USA since 1983. Their Hyper-Flex master bushing kits cover hundreds of vehicle applications with complete, vehicle-specific bushing sets engineered to fit factory suspension mounting points without modification. Energy Suspension’s polyurethane formulation is designed to balance performance improvement with street and trail drivability — firmer than rubber without the harshness of solid mounts. Their 5-to-1 longevity advantage over rubber makes the Hyper-Flex kit a cost-effective long-term investment for any 4Runner build.\u003c\/p\u003e\n\u003ch4\u003ePerfect For:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1990–1995 Toyota 4Runner owners refreshing worn or degraded factory rubber bushings\u003c\/li\u003e\n\u003cli\u003eHigh-mileage 4Runner restorations seeking a complete chassis and suspension bushing refresh\u003c\/li\u003e\n\u003cli\u003eOff-road and overlanding builds wanting improved suspension geometry consistency and long-term bushing durability on trail\u003c\/li\u003e\n\u003cli\u003eStreet and dual-purpose builds seeking improved handling precision and reduced chassis vagueness\u003c\/li\u003e\n\u003cli\u003eAnyone building a performance-focused or restored 4Runner who wants consistent suspension geometry and maximum bushing longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Replace all bushings simultaneously rather than spot-replacing individual worn ones. Mixing old rubber and new polyurethane creates inconsistent compliance characteristics throughout the suspension — the Master Bushing Set ensures a uniform upgrade across the entire chassis for the most consistent improvement in handling and feel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Full alignment is required after installation. Polyurethane bushings are firmer than rubber and will transmit more road and trail vibration into the cabin — this is normal and expected for a performance bushing upgrade.\u003c\/p\u003e","brand":"Energy Suspension","offers":[{"title":"Default Title","offer_id":49533418602663,"sku":"ENG8.18103G","price":406.07,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/0aafe7d5895cf54df0af36777aae1700.jpg?v=1778227938","url":"https:\/\/www.straightsiximports.com\/products\/energy-suspension-90-95-toyota-4-runner-2wd-4wd-black-hyper-flex-master-bushing-set","provider":"Straight Six Imports","version":"1.0","type":"link"}