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1975 Harley Davidson Big Twin Unit 23 Tooth Sprocker
Inspecting A 1975 Harley-Davidson - Four-Speed Inspection
33. The next operation was to install our new 23-tooth sprocket. We slipped the L-key in place to lock the seal collar to Fourth gear, then slid the sprocket on to Fourth gear, followed by the new lock ring and the sprocket nut. Remember, the nut has left-handed threads. We then reached inside the trans (the top was still off) and slid the shifting forks so that two gears were engaged at the same time. We used JIMS Machine's sprocket nut wrench to do this job properly. The socket and the guide made this a clean and painless deal. We threaded the guide on the main shaft (left-hand threads), slid the socket over the guide and the sprocket nut, and tightened the nut to the factory specs for our model. Then we bent an ear of the locking tab over one of the flats on the sprocket nut. View Related Article
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1975 Harley Davidson Big Twin Unit Four Speed Ratchet Top Transmission
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