REVTECH 4-SPEED BIG TWIN TRANSMISSION. 2.60-1 REVTECH GEAR SET WITH CHROME RATCHET TOP AND HEAVY DUTY KICKER KIT.EQUIPPED WITH 1:1 RATIO SPEEDOMETER DRIVE UNIT. FITS BIG TWIN MODELS 1970-EARLY 1984.
Source: Custom Chrome
Complete 4-speed transmissions are designed around our RevTech® cases and highly-regarded RevTech® close-ratio gear sets. Bolt it in and just add oil (and even that s included). The 2.44:1 close-ratio first gear model has a 1.35:1 close-ratio third gear and is ideal for FX models. With 2.60:1 close-ratio first gear and 1.35:1 close-ratio third gear it is perfect for FL models. Both sets 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 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 and the inner primary. They fit most stock and custom 4-speed Big Twin frames using running gear from 1970-early 1984 (see notes), and may use either early (1936-1964) or late (1965-1984) transmission mounting plates.