{"product_id":"apsg-shift-lever-shaft-seal-tool-kit-timken-gm-allison-installer-remover-fits-turbo-350-4l-6l-8l-transmissions","title":"APSG Shift Lever Shaft Seal Tool Kit — TIMKEN GM\/Allison Installer \u0026 Remover, Fits Turbo 350–4L\/6L\/8L Transmissions","description":"\u003cp\u003e\u003cstrong\u003eAPSG Shift Lever Shaft Seal Tool is a complete installer and remover kit that lets you replace the manual shift lever (selector) seal quickly—without draining the transmission fluid.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis specialized tool kit includes a genuine TIMKEN replacement seal and a purpose-built driver set that fits a wide range of GM and Allison automatic transmissions. Designed for professional mechanics and knowledgeable DIYers, the tool allows removal and installation of the shaft seal from the transmission case in minutes, reducing labor time and avoiding the mess and time required to drain and refill fluid.\u003c\/p\u003e\n\n\u003ch3\u003eWhich transmissions does this tool support?\u003c\/h3\u003e\n\u003cp\u003eThe APSG tool covers many GM and Allison models across several decades, including classic Turbo 350\/400 families and modern 4L\/6L\/8L series units. Verify the list below against your transmission code or service manual before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGM TH180, TH200, TH200C, TH200-4R (1976–1990 range)\u003c\/li\u003e\n  \u003cli\u003eTurbo 250\/250C, Turbo 350\/350C, Turbo 400\/425\/475 families\u003c\/li\u003e\n  \u003cli\u003e700-R4, 4L60\/4L60E\/4L65E\/4L70E\/4L80E\/4L85E (1993–2011 and later 4L variants)\u003c\/li\u003e\n  \u003cli\u003e6L45E\/6L50E\/6L80E\/6L90E\/8L90E (2007–present) and PowerGlide\u003c\/li\u003e\n  \u003cli\u003eAllison models: AT540–AT1545, MT640–MT657, LCT1000–LCT2400 (1970–2015 era units)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the tool remove and install the shaft seal without draining fluid?\u003c\/h3\u003e\n\u003cp\u003eThe installer\/remover engages the seal and shaft housing so you can extract the worn seal and press the new TIMKEN seal into place while the transmission stays mounted and full of fluid. This avoids the time and complexity of removing the transmission or pumping out fluid.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpecialized driver cups center on the shaft to extract the old seal cleanly.\u003c\/li\u003e\n  \u003cli\u003ePress-fit driver ensures the new TIMKEN seal seats squarely and to correct depth.\u003c\/li\u003e\n  \u003cli\u003eNo transmission drop or fluid drain required in most service scenarios.\u003c\/li\u003e\n  \u003cli\u003eWorks on short-shaft and many long-shaft selector designs where specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and how does it compare to other tools?\u003c\/h3\u003e\n\u003cp\u003eThe APSG kit ships complete with a genuine TIMKEN replacement seal plus the matching installer and removal drivers. It’s built to function like common professional tools but offered as a ready-to-use kit that avoids sourcing parts separately.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGenuine TIMKEN shaft\/selector seal included for immediate repair.\u003c\/li\u003e\n  \u003cli\u003eDriver set sized to fit the listed transmissions' selector shafts.\u003c\/li\u003e\n  \u003cli\u003eComparable to Atec T-1001-PV, Kent-Moore J-43909\/J-43911, KD Tools 2393, Snap-On YA9348.\u003c\/li\u003e\n  \u003cli\u003eComplete kit eliminates guesswork and additional parts purchases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the job take and what skills are required?\u003c\/h3\u003e\n\u003cp\u003eWith the vehicle safely supported and the selector linkage accessible, most technicians finish the seal swap in a few minutes. Basic mechanical skill and standard hand tools are required; follow service manual guidance for safe access and parking pawl precautions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical service time: just a few minutes once access is prepared.\u003c\/li\u003e\n  \u003cli\u003eRequires common hand tools and a clean workspace to avoid contamination.\u003c\/li\u003e\n  \u003cli\u003eNot recommended for completely inexperienced users without supervision.\u003c\/li\u003e\n  \u003cli\u003eAlways consult the vehicle service manual for exact procedures and torque specs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The APSG Shift Lever Shaft Seal Tool is intended for automotive professionals, transmission specialists, and confident DIY mechanics who service GM and Allison automatic transmissions. If you need a fast, low-disassembly solution to stop a leaking selector shaft—especially on older or high-hour transmissions—this kit supplies the correct TIMKEN seal and driver hardware to complete the job efficiently.\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: Do I need to remove the transmission to use this tool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The APSG tool is designed to replace the shift lever seal without removing the transmission or draining fluid in most cases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the seal provided OEM quality?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes a genuine TIMKEN replacement seal for OEM-level fit and durability.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"APSG","offers":[{"title":"Default Title","offer_id":55165970383191,"sku":"B07SJX1BCN","price":36.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/apsg-shift-lever-seal-tool-front-kit.jpg?v=1790360323","url":"https:\/\/britishgarage.co.uk\/products\/apsg-shift-lever-shaft-seal-tool-kit-timken-gm-allison-installer-remover-fits-turbo-350-4l-6l-8l-transmissions","provider":"British Garage","version":"1.0","type":"link"}