{"product_id":"cmi-300m-racing-axles-short-spline-26-11-16-swing-axle-pair","title":"CMI 300M Racing Swing Axles | VW Beetle \u0026 Ghia 1961–1966 | Short-Spline 26 11\/16\", Unbreakable (Pair)","description":"\u003ch2\u003e\u003cb\u003eCMI 300M Racing Swing Axles | VW Beetle \u0026amp; Karmann Ghia 1961–1966 | Short-Spline 26 11\/16\" (Pair)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eEngineered for maximum launch. Guaranteed unbreakable.\u003c\/b\u003e When \"good enough\" isn't an option for your '61–66 sedan, \u003cb\u003eCMI Precision Machining\u003c\/b\u003e delivers over-engineered swing axles designed to survive the violent torque of competitive drag racing.\u003c\/p\u003e\n\u003cp\u003eForged from aerospace-grade \u003cb\u003e300M steel\u003c\/b\u003e, every axle is hand-polished and lapped to a \u003cb\u003e4 Max RMS finish\u003c\/b\u003e to minimize friction and maximize longevity under extreme loads.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle \u0026amp; Karmann Ghia:\u003c\/b\u003e 1961–1966 sedans (stock swing axle length, 26 11\/16\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose CMI?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eCMI Precision Machining builds these axles as over-engineered masterpieces, backed by a guarantee against breakage under normal racing use — with premium hardware included, not hardware-store bolts.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRace-Ready Threads:\u003c\/b\u003e Specialized J-Thread with a 0.3mm root radius, engineered to distribute stress and prevent fatigue failure during hard launches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrosion Protection:\u003c\/b\u003e Black Oxide finish provides a durable barrier against rust and wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Hardware Included:\u003c\/b\u003e Heat-treated 17-4 stainless steel thrust washers and nickel-plated 4340 flanged castle nuts (54–56 HRC).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Aerospace-grade 300M steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAxle Length:\u003c\/b\u003e 26 11\/16\" (stock swing axle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFitment:\u003c\/b\u003e 1961–1966 sedan models\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSurface Finish:\u003c\/b\u003e Black Oxide; hand-polished\/lapped to 4 Max RMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread Spec:\u003c\/b\u003e J-Thread with 0.3mm root radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThrust Washers:\u003c\/b\u003e (2) 17-4 stainless steel (heat-treated to H900)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCastle Nuts:\u003c\/b\u003e (2) 4340 nickel-plated (heat-treated to 54–56 HRC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSold As:\u003c\/b\u003e Pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAre these really unbreakable?\u003c\/b\u003e CMI backs these 300M aerospace-grade axles with a guarantee against breakage under normal racing use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat hardware is included?\u003c\/b\u003e Heat-treated 17-4 stainless thrust washers and nickel-plated 4340 flanged castle nuts (54-56 HRC) — no need to source separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill these fit my 1968 IRS Beetle?\u003c\/b\u003e No — these are stock-length swing axles for 1961-1966 sedans only. IRS cars use a different axle entirely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the thread spec?\u003c\/b\u003e Race-ready J-Thread with a 0.3mm root radius engineered to resist fatigue failure under hard launches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eUpgrade your driveline: \u003ca href=\"\/collections\/axles\"\u003eAxles\u003c\/a\u003e, \u003ca href=\"\/collections\/suspension\"\u003eSuspension\u003c\/a\u003e, and \u003ca href=\"\/collections\/vw-beetle\"\u003eVW Beetle\u003c\/a\u003e.\u003c\/p\u003e","brand":"Washburn's Metal","offers":[{"title":"Default Title","offer_id":44446172872819,"sku":null,"price":1700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/CMIAXLES.jpg?v=1773351281","url":"https:\/\/www.washburnsmetal.com\/products\/cmi-300m-racing-axles-short-spline-26-11-16-swing-axle-pair","provider":"Washburn's Metal","version":"1.0","type":"link"}