Page 874

2017roadiron-cruiser_en

874 BIG TWIN: 4 SPEED TRANSMISSION GEAR SETS Big Twin 4 speed transmissions have been built since 1936 in several versions. They were included on bikes with Knuckle engines, Pans, Shovels and some ‘84 and ‘85 Evolution 80’s. They all used this transmission. With Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better. Bikes with Andrews gears feel so good that it’s hard to believe until you experience the difference for yourself. 3.00 1st Gear Sets (Original stock ratio) (1959 thru 1984) (15T & 20T cluster; 26T counter gear) 349-4405 (E & F) Close Ratio 3rd Set 1.35 Ratio (18T & 23T) (early) Transmissions built before mid ‘76, to serial #U-8958 (or lower) with loose needle bearings. 349-4408 (E & F) Stock 3rd (1.23 Ratio) (17T & 24T) Replacement for stock main and countershaft 3rd. The design of drive slots on mainshaft gear has been upgraded to include lead-in ramps for quick, more positive shifting. 349-4420 Replaces H/D #35306-59) (Mainshaft 3rd) EVOLUTION 1340: 5 SPEED TRANSMISSION GEARS The EV Big Twin 5 speed gear box has been around since 1984 but the growing number of modifications for the 1340 engine continues to create more interest. In addition to close ratio first gears, Andrews Products also makes stock replacement gears for 1st, 2nd, 3rd, 4th and 5th gears. All Andrews Products 5 speed gears are made from high nickel alloy and heat treated and shot-peened to give maximum durability and strength. Also, where applicable, lead-in ramps have been machined into most gears to improve shifting and reduce wear on drive dogs and drive slots. (A) 3.24 Stock Ratio 1st Gears 349-4662 (1st counter - 31T) Replaces H/D #35622-79A 349-4663 (1st main - 18T) Replaces H/D #35025-79 (B) 2.94 Close Ratio 1st Gear Set 2.94 1st gears provide close ratio shifting into 2nd. At peak RPM, 2.94 gears will run +5 mph over 3.24 ratio. 349-4612 (2 pieces) 1st counter - 25T, 1st main - 16T (D) Stock 4th Gears 349-4620 (4th main gear - 29T) Replaces H/D #35028-79. 349-4618 (4th counter gear - 19T) Replaces H/D #35625- 79A also replaces gear/spacer in all earlier 5 speeds. Stock 5th Main Drive Gears (Chain Drive) 349-4622 (main drive-chain - 32T) Repl. H/D #35029-79 (F) Transmission Shafts (All years) 349-4630 (1)(chain drive mainshaft, 1981-1984) Replaces (H/D #35042-79) 349-4632 (2)(belt drive mainshaft, 1985-1989) Replaces (H/D #35042-85) 349-4634 (3)(belt drive mainshaft, 1990 only) Replaces (H/D #35042-90) 349-4649 (4)(belt drive mainshaft, 1991 - up) Replaces (H/D #35042-91) 349-4628 (5)(countershaft-all years, 1984 - up) Replaces (H/D #35632-79)


2017roadiron-cruiser_en
To see the actual publication please follow the link above