{"product_id":"longfield-gun-drilled-30-spline-chromoly-birfield","title":"Longfield Gun-Drilled 30-Spline Chromoly Birfield","description":"\u003ch2\u003eLongfield™ Gun-Drilled 30-Spline Chromoly Birfield\u003c\/h2\u003e\n\u003cp\u003eThe Longfield™ Gun Drilled 30-Spline Birfields are made out of 100% chromoly and are precision polished to remove any imperfections that may cause stress risers. The internals of the birfield are also made from 4340 chromoly and are dual heat treated for superior strength. The birfield has a M8 grease zerk at the end of the stub shaft and is gun drilled through the center of the birfield to allow for grease to pass through the zerk fitting and into the internals. This will save you precious time by eliminating the need to disassemble your axle just to service your birfields.\u003c\/p\u003e\n\u003cp\u003eThe Gun Drilled 30-Spline Birfields also have a shallow relief near the splines on the stub shaft known as a Machined Spline Saver. The Machined Spline Saver eliminates stress concentrations caused by grooving from the tool that makes the splines on the stub shaft. The stress concentration from the spline groove is a common failure point on birfield stub shafts.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% 4340 Chromoly Steel - Precision Polished to Remove Imperfections and Prevent Stress Risers\u003c\/li\u003e\n\u003cli\u003eInternals Dual Heat-Treated for Superior Strength\u003c\/li\u003e\n\u003cli\u003eMachined Spline Saver to Eliminate Stress Concentrations from the Spline Groove\u003c\/li\u003e\n\u003cli\u003eGun Drilled to Create Grease Passage Through the Birfield\u003c\/li\u003e\n\u003cli\u003eM8 Grease Zerk At the End of Stub Shaft for Easy Greasing\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"col-md-3\" align=\"center\"\u003e\n\u003cbr\u003e\u003cstrong\u003eTOYOTA 4RUNNER\u003cbr\u003e(1984-1985)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e1984 Toyota 4Runner\u003cbr\u003e1985 Toyota 4Runner\u003c\/div\u003e\n\u003cdiv class=\"col-md-3\" align=\"center\"\u003e\n\u003cbr\u003e\u003cstrong\u003eTOYOTA PICKUP\u003cbr\u003e(1979-1985)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e1979 Toyota Pickup\u003cbr\u003e1980 Toyota Pickup\u003cbr\u003e1981 Toyota Pickup\u003cbr\u003e1982 Toyota Pickup\u003cbr\u003e1983 Toyota Pickup\u003cbr\u003e1984 Toyota Pickup\u003cbr\u003e1985 Toyota Pickup\u003c\/div\u003e\n\u003cdiv class=\"col-md-3\" align=\"center\"\u003e\n\u003cbr\u003e\u003cstrong\u003eAXLES\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eRock Assault™ Front Axle Housing\u003cbr\u003eToyota Solid Front Axle Housing\u003c\/div\u003e\n\u003cdiv class=\"col-md-3\" align=\"center\"\u003e\n\u003cbr\u003e\u003cstrong\u003eOther Toyota Models\u003cbr\u003e(Non-US)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eBundera\u003cbr\u003eKZJ70\u003cbr\u003eKZJ71\u003cbr\u003eKZJ77\u003cbr\u003eLand Cruiser II\u003cbr\u003eLJ70\u003cbr\u003eLJ71\u003cbr\u003eLJ73\u003cbr\u003eLJ74\u003cbr\u003eLJ78\u003cbr\u003ePrado (70 Series Only)\u003cbr\u003eRJ70\u003cbr\u003eRJ73\u003cbr\u003eRJ78\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRAIL GEAR","offers":[{"title":"Default Title","offer_id":44558933655635,"sku":"301475-1-KIT","price":345.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/8823\/5859\/files\/IMG_9052.jpg?v=1777740579","url":"https:\/\/goatmtoffroad.com\/products\/longfield-gun-drilled-30-spline-chromoly-birfield","provider":"GOAT MT. OFFROAD LLC ","version":"1.0","type":"link"}