{"product_id":"mcs531956","title":"S\u0026S 54-E77 B.t. Pinion Shaft Gear Kit. Yellow – 1954–1965 Panhead; 66-E77 Shovelhead","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eYellow color coded for size. Complete kit for scratch builds or rebuilds. Complete with all components on the pinion shaft. Note: Kit must be used with a 73-99 B.T. style oil pump driven gear (S\u0026amp;S 531209 \/ OEM 26345-73). Note: 54-E77 B.T. kit can be used in 54-72 engines to speed-up stock oil pump RPM by 25%; like is stock in the later 73-E77 B.T. models. Note: Available in 531954 White; smallest \/ 531955 Brown; 1-step larger than White \/ 531956 Yellow; 1-step larger than Brown. Note: If the stock gear is unmarked and the size is unknown or you are scratch building an engine and without gear; S\u0026amp;S recommend a gear in the middle of the size range. These sizes were used more often and should provide adequate gear clearance under most circumstances. When in doubt; use a gear from the middle to the small side of the range; because a combination of looser fitting smaller gears will give a harmless clicking sound but to tight can cause a wining sound; binding and premature wear. Consult the factory service manual for information on optimum cam gear to pinion gear fit instructions before you order.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e54-65 Panhead\u003c\/li\u003e\n\u003cli\u003e66-E77 Shovelhead (NU)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor parts \u0026gt; Pinion conversion kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 531956\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003eMCS Part Number: 531956\u003cbr\u003eManufacturer Part Number: 106-3216\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341758230848,"sku":"MCS531956","price":205.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/531956k.jpg?v=1776035513","url":"https:\/\/hogparts.co.uk\/products\/mcs531956","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}