DRIVE TRAIN SECTION RED PART NUMBERS INDICATE NEW PARTS 7-25 1 2 3 4 5 6 7 8 9 10 11 CONTENTS ELECTRICAL FRAME FRONT END CONTROL WHEEL ENGINE DRIVE TRAIN FUEL EXHAUST GENERAL REFERENCE Big Twin 4 Speed Parts COUNTERSHAFT CASE BUSHING STARTER SIDE 1936/Early 1976 74609 - Standard O.D. 1.125” (Rpls. HD 36046-36) Late 1976/1979 74611 - Standard O.D. 1.125” (Rpls. HD 36045-76) 1980/1986 74615 - Standard O.D. 1.125” (Rpls. HD 36048-76A) MAIN DRIVE GEAR BUSHING 1965/Later 74625 (Rpls. HD 35094-65) OUTER BEARING RACE Late 1937/Early 1977 72928 - Standard O.D. 2.314” 72932 - .005” OS O.D. (Rpls. HD 35125-37) TRANSMISSION PARTS FOR BIG TWIN 4 SPEED MAIN DRIVE GEAR ASSEMBLY & HOUSING CORK NEOPRENE OIL SEAL 1936/Early 1977 72913F (Rpls. HD 35231-36) O RING SEAL 1985/Later 72936J (Rpls. HD 11166) BEARING RETAINING WASHER 1936/Early 1977 72260 (Rpls. HD 35131-36) OIL SEAL Steel O.D. Late 1966/Later 72941C - 72912C - (Rpls. HD 12013A & 12022) MAIN DRIVE GEAR NEEDLE BEARING Late 1977/1981 74601 (Rpls. HD 8905) SPROCKET SPACER 1980/1981 .050” thick 72261C (Rpls. HD 35079-80) MAINSHAFT OIL SEAL 1936/1979 Double Lip 74715C (Rpls. HD 35230-39) 1980/1981 Single Lip 72922C (Rpls. HD 37741-67) 1982/Later Single Lip 74716C (Rpls. HD 37741-82) KEY 1941/Early 1977 72331F (Rpls. HD 35175-38) MAIN DRIVE GEAR SPACER 1937/Early 1977 72240 - .585” thick (Rpls. HD 35171-37) Late 1977/1979 72259 - .550” thick (Rpls. HD 35070-77) 1980/1981 72238 - .404” thick (Rpls. HD 35070-80) Fits FLH 1982/Later FXB 1982 FXSB 1983/1984 FXWG 1984 Rear Belt Drive Models 72263 - .383” thick (Rpls. HD 35070-82A) MAIN DRIVE GEAR 26T Includes sized bushing 1936/Early 1977 Use with loose rollers 72633 - 72604 - (Rpls. HD 35065-65B) Late 1977/Later Use with needle bearing 72634 - 72611 - (Rpls. HD 35067-84) See Section 10 for Shift Fork Aligning Gauge COUNTERSHAFT CASE BUSHING CLUTCH SIDE 1936/Early 1976 74613 - Standard O.D. 1.125” (Rpls. HD 36048-36) Late 1976/1986 74615 - Standard O.D.1.125” (Rpls. HD 36048-76A) 7-29 7-29 Section 4 DRAIN PLUG & WASHER 72217 - (Rpls. HD 707 & 62702-52)
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