{"product_id":"th-350-locking-transmission-dipstick-positive-lock-leak-resistant","title":"TH-350 Locking Transmission Dipstick - Positive Lock, Leak Resistant","description":"\u003cp\u003eOur review of the TH-350 Locking Transmission Dipstick finds it best suited for racers and mechanics who need a secure, leak-resistant dipstick tube for high-performance or drag applications. The single biggest reason to buy is the positive locking design combined with a rubber grommet seal that reduces fluid leaks and keeps out moisture and debris, which makes it particularly valuable for vehicles run hard or frequently inspected. Installers will appreciate the steel case tube with a welded mounting tab, though some may encounter alignment or length fitment issues depending on the car.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive lock:\u003c\/strong\u003e The locking mechanism keeps the dipstick firmly in place during hard launches and at high speeds to prevent accidental ejection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRubber grommet seal:\u003c\/strong\u003e The grommet-style seal reduces the common leaks seen with o-ring designs and helps keep moisture and debris out of the transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel fill tube:\u003c\/strong\u003e A gold-finish steel case tube offers durable mounting and resists corrosion while providing a tidy fill point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelded mounting tab:\u003c\/strong\u003e The welded-on tab provides a secure attachment point to the transmission or chassis to hold the tube steady under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle specific fit type:\u003c\/strong\u003e Designed as a vehicle specific fit, it is intended for TH-350 applications and high performance cars, including drag racers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace requirement compliance:\u003c\/strong\u003e Locking dipstick tubes are required on many 10.99 and faster drag cars, making this a practical choice for track legal builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis dipstick is ideal for drag racers, weekend track drivers, and performance shops that need a reliable way to lock the dipstick and reduce transmission leaks. Its construction suits vehicles where a secure seal and a welded mounting point are preferred, and it answers safety and compliance needs for many drag classes.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners of vehicles that require an unusually long dipstick or cars with nonstandard mounting geometries, since several users report the dipstick can be shorter than expected or present bolt alignment challenges with the mounting tab.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSecure locking mechanism prevents accidental removal and helps keep the dipstick sealed during aggressive driving.\u003c\/li\u003e\n\u003cli\u003eGrommet-style rubber seal reduces leaks and keeps contaminants out better than traditional o-rings.\u003c\/li\u003e\n\u003cli\u003eSolid steel tube with a gold finish and welded tab feels durable and well built.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome installers report bolt alignment issues with the mounting tab, which can complicate installation on certain cars.\u003c\/li\u003e\n\u003cli\u003eA number of customers find the dipstick too short for their applications, so confirm length before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eTH-350 Locking Transmission Dipstick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit Type\u003c\/td\u003e\n\u003ctd\u003eVehicle Specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Dimensions (cm)\u003c\/td\u003e\n\u003ctd\u003e68.58 H x 7.62 L x 13.97 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Weight\u003c\/td\u003e\n\u003ctd\u003e0.363 kilograms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Material\u003c\/td\u003e\n\u003ctd\u003eSteel fill tube with gold finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Type\u003c\/td\u003e\n\u003ctd\u003eRubber grommet-style seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe TH-350 Locking Transmission Dipstick is a practical, value-oriented choice for anyone needing a leak-resistant, locking dipstick tube for high-performance or drag applications. It excels where a secure lock and improved sealing are required, though buyers should verify dipstick length and mounting tab alignment for their specific vehicle before purchase.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my TH-350 transmission?\u003c\/strong\u003e\u003cbr\u003eIt is a vehicle specific fit for TH-350 applications, but confirm dipstick length and mounting tab placement against your vehicle to ensure proper fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the seal prevent leaks better than an o-ring?\u003c\/strong\u003e\u003cbr\u003eYes, the rubber grommet-style seal is designed to reduce the leaks commonly seen with traditional o-ring seals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this legal for drag racing use?\u003c\/strong\u003e\u003cbr\u003eLocking dipstick tubes like this are commonly required on 10.99 and faster drag cars, making it appropriate for many classes that mandate a lockable dipstick.\u003c\/p\u003e","brand":"Allstar Performance","offers":[{"title":"Default Title","offer_id":48629047361755,"sku":"B009Q79XHE","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/418JVFaM1YL._AC_SL1000.jpg?v=1778500121","url":"https:\/\/gearmusthave.com\/products\/th-350-locking-transmission-dipstick-positive-lock-leak-resistant","provider":"GearMustHave","version":"1.0","type":"link"}