{"product_id":"mcs509630","title":"Jims Sprocket Shaft. 56-64 B.T – 1956–1964 Big Twin with OEM Flywheels","description":"\u003ch2\u003eJims Sprocket Shaft. 56-64 B.T – 1956–1964 Big Twin with OEM Flywheels\u003c\/h2\u003e\n\u003cp\u003eFits with OEM flywheels. Sprocket shaft has keyway; use 23985-56 key (MCS 517960). Taper is 8-1\/2°. Shaft is 3.51\" long from bearing shoulder to end of smalll thread. Use 24023-36 JIMS nut (MCS 978258) on flywheel side and use 24003-55 nut (MCS 518000) on sprocket side. JIMS shafts are precision machined in Camarillo; California from a special order steel. Each and every part is thoroughly inspected and after heat treating all threads go through a special process to make them withstand greater torque stress. All shafts are ground to a 16 micron finish or better; unless specified otherwise. All ground diameters are concentric to well within .0003\"; making truing and rebuilding quicker and with less effort. Note: Will not fit electric start Panhead models with the aluminum primary.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e56-64 Big Twin with OEM flywheels (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Jims\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; SPROCKET SHAFTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e EA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 509630\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jim's","offers":[{"title":"Default Title","offer_id":57376873480579,"sku":"MCS509630","price":154.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/509630k_6977964e-c447-4cbb-8932-335038778811.jpg?v=1775554575","url":"https:\/\/hogparts.com\/products\/mcs509630","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}