{"product_id":"m22-rock-crusher-4-speed-manual-transmission","title":"M22 Rock Crusher 4-Speed Manual Transmission","description":"The Auto Gear Upgraded Ultra Case M22 Rock Crusher 4-speed transmission is engineered as a direct performance replacement for classic GM vehicles. It boasts a new Muncie Auto Gear ultra case, making it one of the strongest M22 transmissions available, designed to handle significant horsepower.\n\nThis heavy-duty Rock Crusher is available in either Wide (2.56-1st, 1.75-2nd, 1.36-3rd, 1:1-4th) or Close (2.20-1st, 1.64-2nd, 1.27-3rd, 1.00-4th) ratios, making it ideal for use with rear-end gears ranging from 3.42 to 4.88. The transmission features a C355 forged aluminum mid-plate, an AG side cover, and a super tail housing with either a 27 or 32 spline output shaft, including a passenger-side speedometer connection. It is a professionally built Muncie unit with zero miles since assembly.\n\nDesigned for a direct fit, this M22 transmission eliminates the need for extensive modifications often associated with installing 5 or 6-speed transmissions. It is compatible with all 1963-1974 GM cars requiring a 10 or 26 spline clutch disk. The transmission also includes fill and drain plugs for ease of maintenance. Customers have praised its smooth action, performance, and characteristic M22 gear whine.","brand":"AutoGear","offers":[{"title":"Default Title","offer_id":52687029371192,"sku":"0566548","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660677759.jpg?v=1784879683","url":"https:\/\/store.motormia.co\/products\/m22-rock-crusher-4-speed-manual-transmission","provider":"MOTORMIA","version":"1.0","type":"link"}