{"product_id":"mcs971589","title":"Samwel 3 to 4-Speed Conversion Kit for 45\" Flathead – 1941–1951 WL \u0026 1932–1963 G Servi-Car","description":"\u003ch2\u003eSamwel 3 To 4-Speed Conversion Kit for 45\" Flathead – 1941–1951 WL \u0026amp; 1932–1963 G Servi-Car\u003c\/h2\u003e\n\u003cp\u003eWill enable you to turn the stock 45\" 3-speed transmission into a 4-speed. 1; 2; 3 are smaller and 4th gear is identical to OEM ratio to get closer to the optimum RPM (Torque) at different speeds. Fits 3-speed 45\" (750cc) Side Valve models. 41-46 shift pattern. Can be used with later models when converted to footshift or the tankshift pattern is converted to 41-46 style. Note: The stock transmission side cover (kickstart cover) must be machined to accept the larger first (low) gear. Optionally a special 4-speed transmission side cover is separately available as 971591.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e41-51 WL \u0026amp; 32-63 G Servi-Car (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Samwel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e TRANSMISSION\/DRIVELINE \u0026gt; TRANSMISSION GEARS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e SET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 971589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Samwel","offers":[{"title":"Default Title","offer_id":44324998480192,"sku":"MCS971589","price":1076.61,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/971589k.jpg?v=1785952709","url":"https:\/\/hogparts.co.uk\/products\/mcs971589","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}