{"product_id":"labwork-4-pack-5-16-g70-rtj-cluster-hooks-set-5-400-lb-working-load-forged-heat-treated-replacement-for-tow-trucks","title":"labwork 4 Pack 5\/16\" G70 RTJ Cluster Hooks Set — 5,400 lb Working Load, Forged Heat‑Treated Replacement for Tow Trucks","description":"\u003cp\u003e\u003cstrong\u003elabwork 4 Pack 5\/16 RTJ Cluster Hooks Set G70 is a forged, heat-treated Grade 70 cluster hook assembly rated for a 5,400 lb working load, built as a heavy-duty replacement for car haulers, tow trucks, and wreckers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese RTJ cluster hooks combine three hook types into a single chain assembly to fit a wide range of frame-hole designs on towing rigs. Designed for commercial and light-industrial hauling, the labwork set gives operators a compact, versatile option when standard single hooks can't reach or match different vehicle frame attachments. The set is forged and heat treated to increase durability and resist deformation under repeated loading.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this RTJ cluster hook set adapt to different frame holes?\u003c\/h3\u003e\n\n\u003cp\u003eThe cluster design groups three hook styles (R, T, and Mini J) on one link so technicians can quickly select the best engagement point without swapping hardware. That flexibility reduces downtime and helps secure loads on frames with nonstandard mounting points. Each hook profile offers distinct seating geometry to fit shallow, recessed, or offset holes.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThree-hook cluster: R, T, and Mini J configurations on a single link\u003c\/li\u003e\n  \u003cli\u003eFits common frame-hole sizes used in car hauling and towing\u003c\/li\u003e\n  \u003cli\u003eEliminates the need to carry multiple separate hooks for many jobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat strength and safety ratings should I expect from the labwork G70 set?\u003c\/h3\u003e\n\n\u003cp\u003eThese cluster hooks meet Grade 70 specifications for chain accessories and are rated with a 5,400 lb working load limit for the 5\/16\" size. The forging and heat-treatment processes increase fatigue resistance and maintain shape under load—important when hauling vehicles or using winches. Always follow rated limits and industry rigging practices; never exceed the listed working load limit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGrade 70 rating suitable for many towing applications\u003c\/li\u003e\n  \u003cli\u003e5,400 lb working load limit per cluster for 5\/16\" size\u003c\/li\u003e\n  \u003cli\u003eForged and heat treated to resist wear and bending\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and use the cluster hooks safely on my wrecker or car hauler?\u003c\/h3\u003e\n\n\u003cp\u003eInstall the cluster by selecting the appropriate hook in the cluster to seat into the vehicle frame or tow point and attach the chain to your winch or recovery gear per manufacturer guidance. Inspect the hook, chain, and attachment points before each use and replace any component showing deformation, cracks, or excessive wear. Use proper shackles or couplers rated for the system and tighten all connectors securely.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSelect the hook profile that best seats in the frame hole\u003c\/li\u003e\n  \u003cli\u003eInspect hardware before each lift or tow; discard damaged parts\u003c\/li\u003e\n  \u003cli\u003eUse compatible Grade 70 chain and rated shackles for connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat advantages do forged, heat-treated hooks offer compared to cast or untreated parts?\u003c\/h3\u003e\n\n\u003cp\u003eForged components have aligned grain structure that increases tensile strength and toughness compared with cast parts, while heat treatment improves hardness and fatigue life. Together these processes deliver a hook that resists chipping, cracking, and permanent deformation under repetitive loads. For towing and recovery operations where reliability matters, forged and heat-treated hardware reduces the likelihood of unexpected failures.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eForging improves impact resistance and structural integrity\u003c\/li\u003e\n  \u003cli\u003eHeat treatment increases hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eLonger service life under repeated towing cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The labwork 4 Pack 5\/16 RTJ Cluster Hooks Set G70 is aimed at professional tow operators, auto haulers, fleet maintenance teams, and hobbyists who need a compact, versatile hooking solution for vehicle recovery and transport. If you regularly work with varied frame designs or want a replacement set that reduces the number of separate hooks to carry, this Grade 70 cluster kit provides a durable, industry-suited option.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the working load limit for these 5\/16 RTJ cluster hooks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The labwork 5\/16 RTJ cluster hooks are rated at a 5,400 lb working load limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these hooks with any chain or shackle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use compatible Grade 70 chain and shackles rated for the system; avoid mismatched grades or undersized fittings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"labwork","offers":[{"title":"Default Title","offer_id":67586544730297,"sku":"B0B5CFB1PW","price":138.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/labwork-front-packaging-cluster-hooks.jpg?v=1790486604","url":"https:\/\/redleafauto.ca\/products\/labwork-4-pack-5-16-g70-rtj-cluster-hooks-set-5-400-lb-working-load-forged-heat-treated-replacement-for-tow-trucks","provider":"Redleaf Auto","version":"1.0","type":"link"}