30661 Revtech 2.60:1 Ratio 4-speed Kicker Tranny Harley Big Twin 1936-1964 on 2040-parts.com
Mentor, Ohio, US
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Our complete 4-speed transmissions for 1936 thru 1964 Big Twins have all the great features of our other 4-speed transmissions. The biggest difference is that we altered the casting molds to remove the primary mounting ears used with aluminum primaries. The result is a transmission that bolts into virtually any rigid or swingarm kickstart frame. And it’s perfect for building a ‘retro’ custom bike that uses tin primary, chain final drive and kick starter. Bolt it in and just add oil (and even that’s included). Complete 4-speed transmissions are designed around our RevTech® cases and highly-regarded RevTech® close-ratio gear sets. Available in 2 different close-ratio first gear versions. The 2.44:1 close-ratio first gear version has a 1.35:1 close-ratio third gear and is ideal for FX models. The 2.60:1 close-ratio first gear version also has 1.35:1 close-ratio third gear and is perfect for FL models. Both versions provide a more usable first gear and eliminate second gear ‘clunk’ with better pull in third gear. RevTech® gear faces are honed and finish ground for maximum strength and precise engagement. Shifter clutches and shifter dog faces are widened .020" for better durability. RevTech® 4-speed cases are machined from ‘356’ aluminum alloy castings and heat-treated to ‘T6’. They are finished off with our chrome heavy-duty kicker kit and chrome ratchet top. Included is a set of 1:1 ratio speedometer drive gears, a chrome clutch release lever with chrome cover and a 23-tooth transmission sprocket. Transmissions are shimmed and tested and include studs for installation on the mounting plate.
Notes: These transmissions should not be used in models with final belt drive. Kicker arm may interfere with some OEM exhausts. Late style swing out kick arm provides sufficient clearance.
This
item is the 2.60:1 close-ratio first gear version complete 4-speed
transmission assembly with kicker and a natural aluminum finished case
and chrome covers. MSO included to be shipped separate from tranny.
Includes RevTech® 5 Year or 50,000 Mile Limited Warranty. RevTech part # 30661.
For 1936-64 Harley Big Twin models
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