{"product_id":"toyota-4runner-1985-1989-ifs-leaf-rear-11-1985-1989-tough-dog-t46l-rh-tough-dog-rear-leaf-spring","title":"Toyota 4Runner (1985-1989) IFS (Leaf Rear) 11\/1985-1989 Tough Dog T46L-RH Tough Dog Rear Leaf Spring","description":"\u003cp\u003e\u003cstrong\u003eToyota 4Runner (1985-1989) IFS (Leaf Rear) 11\/1985-1989 Tough Dog T46L-RH Tough Dog Rear Leaf Spring\u003cbr\u003eTD-T46L-RH\u003c\/strong\u003e\u003cbr\u003e \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eLeaf springs represent one of the most enduring suspension designs in automotive engineering, maintaining their relevance in commercial vehicles due to their exceptional load-bearing capabilities. Designed in Australia, Tough Dog progressive rate leaf springs incorporate both primary and secondary stage leaves, ensuring that the vehicle's ride quality remains uncompromised under varying load conditions.\u003c\/p\u003e\n\u003cp\u003eAs the spring compresses under load, the secondary stage engages, effectively preventing excessive sag and maintaining optimal ride height. The manufacturing process is meticulously engineered to maximize durability, offering robust corrosion resistance and sag prevention. Tough Dog provides a selection of up to three spring rate options for most applications, allowing for tailored performance to suit specific vehicle setups.\u003c\/p\u003e\n\u003cp\u003eThese leaf springs are precision mandrel and die-formed, oil quenched, hardened, and tempered to ensure longevity and resilience. A military wrap is standard across all part numbers, enhancing structural integrity. Each spring is accurately heat-treated and crafted from high-grade spring steel, with anti-friction pads included in most applications to reduce wear and enhance performance. Additionally, the springs are pre-stressed to maintain ride height and are load rate tested to ensure reliability.\u003c\/p\u003e\n\u003cp\u003eFor vehicles equipped with additional accessories, Tough Dog offers various spring rates to accommodate constant load carrying. The approximate raised height provided by these springs ranges from 40-50mm, with specific models designed for different load capacities: T46C-LH and T46C-RH for light loads (0-300kg) on passenger and driver sides respectively, and T46L-LH and T46L-RH for constant loads (300kg) on the same sides.\u003c\/p\u003e\n\u003cp\u003eWhen selecting springs, it is advisable to choose one of each side (LH and RH) to create a complete pair. It is also recommended to pair these raised springs with long travel shock absorbers for optimal performance. Constant load refers to weight that is permanently added to the vehicle, such as fixed accessories like canopies, steel trays, draw systems, fridges, toolboxes, rear bars, or spare wheel carriers. Selecting the appropriate spring rate is crucial for achieving the best results in load carrying capacity, ride quality, and overall ride height.\u003c\/p\u003e\n\u003cp\u003ePlease note that images provided are for representation purposes only and may not accurately depict the specific part number being viewed.\u003c\/p\u003e\u003ch4\u003eLeaf Spring Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned in Australia\u003c\/li\u003e\n\u003cli\u003eProgressive rate leaf springs\u003c\/li\u003e\n\u003cli\u003ePrimary and secondary stage leaves\u003c\/li\u003e\n\u003cli\u003ePrevents excessive sag\u003c\/li\u003e\n\u003cli\u003eMaximum life and corrosion protection\u003c\/li\u003e\n\u003cli\u003eUp to 3 spring rate options\u003c\/li\u003e\n\u003cli\u003ePrecision mandrel \u0026amp; die-formed\u003c\/li\u003e\n\u003cli\u003eOil quenched, hardened \u0026amp; tempered\u003c\/li\u003e\n\u003cli\u003eMilitary wrap standard\u003c\/li\u003e\n\u003cli\u003eAccurately heat-treated\u003c\/li\u003e\n\u003cli\u003eManufactured from high grade spring steel\u003c\/li\u003e\n\u003cli\u003eAnti-friction pads in most applications\u003c\/li\u003e\n\u003cli\u003ePre-stressed to maintain ride height\u003c\/li\u003e\n\u003cli\u003eDiamond cut ends\u003c\/li\u003e\n\u003cli\u003eLoad rate tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpring Rate Options\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eT46C-LH - 0-300kg Light Load Passenger Side\u003c\/li\u003e\n\u003cli\u003eT46C-RH - 0-300kg Light Load Driver Side\u003c\/li\u003e\n\u003cli\u003eT46L-LH - 300kg Constant Load Passenger Side\u003c\/li\u003e\n\u003cli\u003eT46L-RH - 300kg Constant Load Driver Side\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eImportant Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLH and RH noted select one of each to create a pair\u003c\/li\u003e\n\u003cli\u003eRecommend fitting long travel shock absorbers with raised springs\u003c\/li\u003e\n\u003cli\u003eConstant Load refers to weight that remains in\/on the vehicle\u003c\/li\u003e\n\u003cli\u003eFixed accessories considered Constant Load\u003c\/li\u003e\n\u003cli\u003eSelect relevant spring rate for best results\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003eSelect the most appropriate spring rate option to suit the fixed accessories on the vehicle:\n\u003cbr\u003e\n\u003cbr\u003eApproximate Lift Height: 40-50mm\n\u003cbr\u003e\n\u003cbr\u003e \tT46C-LH - 0-300kg Light Load Passenger Side\n\u003cbr\u003e \tT46C-RH - 0-300kg Light Load Driver Side\n\u003cbr\u003e \tT46L-LH - 300kg Constant Load Passenger Side\n\u003cbr\u003e \tT46L-RH - 300kg Constant Load Driver Side\n\u003cbr\u003e\n\u003cbr\u003eSold Individually.\n\u003cbr\u003eWhere LH and RH are noted select one of each to create a pair.\u003cp\u003eHigh quality 4x4 suspension upgrades proudly sold by PPD Performance.\u003c\/p\u003e\u003ch5\u003eShipping Policy\u003c\/h5\u003e\n\u003cp\u003ePPD Performance offer custom built suspension solutions, with unique adjustability and performance.\u003c\/p\u003e\n\u003cp\u003eThese kits are assembled to order to suit your requirements, with an average lead time that can vary between 1-3 days.\u003c\/p\u003e\n\u003cp\u003eIf you need a specific eta, please contact us before ordering and we will be sure to assist you.\u003c\/p\u003e","brand":"Tough Dog","offers":[{"title":"Default Title","offer_id":46758943883438,"sku":"TD-T46L-RH","price":252.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2136\/3225\/files\/Tough-Dog-Leaf-Springs-1_efef8bae-c213-410b-876a-b29b86ae3cc4.jpg?v=1754614539","url":"https:\/\/ppdperformance.com.au\/products\/toyota-4runner-1985-1989-ifs-leaf-rear-11-1985-1989-tough-dog-t46l-rh-tough-dog-rear-leaf-spring","provider":"PPD Performance","version":"1.0","type":"link"}