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Transmission / Drive Line

Looking to upgrade your transmission or drive line? Zipper’s Performance Products knows a high performance hot rod often requires highly resilient transmission and drive line components, clutches or even a chain conversion. We’ve done the research for you and offer many drive line performance products. Zipper’s extremely popular Chain Conversion Kits take the hassle out of converting your late model belt drive. Looking for clutch that’s easier on your hand? Bandit® and VPC clutches can handle big engine upgrades while easing the ache in your hands.
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  1. Be the first to review this product

    As low as: $5.33

    Use to create room for VPC weights when using non-stock, flat-back derby cover. Billet aluminum spacer moves cover out for additional clearance. Requires 2 open-center derby cover gaskets.
  2. Be the first to review this product

    As low as: $10.15

    In high output applications, we’ve seen the primary bearing race on 1985-2007 models that is pressed onto the main shaft walk in to the main drive gear and damage it, requiring expensive repairs. This unit replaces the two-piece H-D® bearing with a single sealed unit, similar to the earlier model bearing used successfully for years. Requires the seal listed below for wet applications. Fits all 1985-2007 Big Twins; requires # 872-527 seal and original equipment bearing and race removal.
  3. As low as: $0.00

    We’ve taken the hassle of converting your late model belt driven H-D® to chain drive. Whether you’re interested in a different final drive ratio, added driveline strength or more clearance for a wider tire, these kits will make your life easier. Kits are available with durable, high wearing RK Pro O-Ring chains (best for street use) or RK's brutally strong, non-o-ring DR (Drag Race) chain.
  4. Be the first to review this product

    As low as: $23.99

    These sprockets are offset towards the engine case in a stock application, and use a flat rear sprocket. Direct bolt-on for ‘91-’94 models; ‘95-'05 models require a seal and spacer kit # 850-940.
  5. Be the first to review this product

    As low as: $299.95

    CNC machined from 7075-T6 billet aluminum, our door strengthens this critical area and provides rigid support for the transmission shafts. Includes grade 8 mounting hardware, shift drum bushing, main and countershaft ball bearings and circlips installed for your convenience. Made in USA.
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