DRIVE TRAIN SECTION RED PART NUMBERS INDICATE NEW PARTS 7-37 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 Sportster 4 Speed Parts TRANSMISSION MAINSHAFT PARTS FOR K MODEL AND SPORTSTER 4 SPEED ALL YEARS SECOND GEAR 23T 1956/Later 72636 - 72612 - (Rpls. HD 35296-56A) CLUTCH GEAR NEEDLE BEARING 1954/Later 72930 (Rpls. HD 35961-52) LOW GEAR 27T 1954/Later 72642 (Rpls. HD 35277-52A) MAINSHAFT ROLLER THRUST WASHER 72287C (Rpls. HD 35363-52) MAINSHAFT ROLLER RETAINING RING 1954/1984 72345F (Rpls. HD 35113-52) MAINSHAFT BEARING RACE 1954/1983 72920 - Standard O.D. 1.5635” (Rpls. HD 35105-52) OIL SEAL GASKET 1954/Early 1984 72406F (Rpls. HD 35169-52) 7-112 7-38 See Page 7-39 For Complete Gear Sets MAINSHAFT BEARING Late 1984/1990 74606 (Rpls. HD 9118) 7-39 7-23 THIRD GEAR 20T 1956/Later 72638 (Rpls. HD 35305-56B) CLUTCH GEAR BUSHING 1954/1985 72336 (Rpls. HD 37458-52) MAINSHAFT CASE BEARING 1954/Later 72917 (Rpls. HD 9025A) Diagrams reprinted courtesy of Clymer - Clymer Instruction Books available in Section 10 of this catalog. MAINSHAFT OIL SEAL 1954/Early 1984 64816C (Rpls. HD 35151-52A) KICKSHAFT GREASE FITTING 1952/Later with kickstart 26521D - (Rpls. HD 9851)
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