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Amazon.com: Adjustable Clutch Hub Spring Retainer Upgrade Kit for 1941-(Early)1984 Harley Knucklehead, Panhead, Shovelhead Big Twin w/10-Spring Clutch & 5 Long Adjustment Studs – Eliminates Lunging/Grabby Clutch : Automotive
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4L80E and TH400. Sonnax forward clutch hub thrust washer - inner washer .078" (5 washers) - PATC - TransmissionCenter.net
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Cycle Standard 5 Stud Clutch Hub Assembly - Harley-Davidson Big Twins 1941-1984 OEM # 37550-41B – Lowbrow Customs
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