Belt Drive Limited BDL-EVO-10S 3" Open Primary Belt Drive Kit for Big Twin 70-78 w/Ratchet Lid Transmission Shot is constantly working to

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BDL 78 Tooth 14mm Pitch 1-1/2" Wide Primary Belt

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Belt Drive Limited BDL-EVO-10S 3" Open Primary Belt Drive Kit for Big Twin 70-78 w/Ratchet Lid Transmission Shot is constantly working toDescription for 3in. Open Primary Belt Drive Kit. Fits Big Twin 1970 1978 with Ratchet Lid Transmission. Will only work with OEM 70 78 ratchet lid transmissions and aftermarket 5>4 speed transmissions. Will NOT work with 79 84 OEM plate top transmissions or aftermarket 4 speed transmissions. Requires 90up style starter some modification may be necessary to install. Requires BCM 7072, JGI 12014 and BDL CDAS 200.