Page 19 of Transmission & Kickstart by Zodiac

transmission parts zodiac 5 speed drag race gear sets 731522 for serious pro-mod or pro-stock drag racers that use the harley-style 5 speed transmission we offer our top quality gear sets with 5 degrees back cut shifter dogs for quicker and more positive shifting these gear sets are modified and spaced by zippers performance and include their special designed cnc machined billet trap door with double row bearings gears are forged and then cnc machined by one of the worlds leading automotive transmission factories the material selected for the gears and shafts is a high stress 20crmnt gear steel gears and shafts are tempered and stress released to a core hardness of 35 to 45 rockwell and have a surface hardness of 58 to 60 rockwell all gears are lapped after hardening for a smooth tooth surface that guarantees a noiseless and trouble free transmission for numerous high speed and low e.t passes the kit consists of 10 zippers modified mounted and spaced gears with back-cut shifter dogs zippers trap door with double row bearings with zodiac main and counter shaft zodiac s 5 speed big-twin transmission gears main shafts and counter shafts the new line of zodiac s 5 speed big-twin transmission gears and shafts is now available there are other transmission parts on the market but none are as economically priced nor have they quality in engineering and cad/cam design as these gears and shafts these precision parts are cnc manufactured by one of the worlds leading automotive transmission factories the material selected is a high stress 20crmnt gear steel gears and shafts are tempered and stress released to a core hardness of 35 to 45 rockwell and have a surface hardness of 58 to 60 rockwell all gears are lapped after hardening for a smooth tooth surface that guarantees a noiseless and trouble free transmission for ten-thousands of miles available are the latest model gears and shafts for 5 speed big-twin from 1994 to present will also fit the 1980 thru 1993 models if replaced as a complete set including shafts all gears are separately available complete gear and shaft set 237075 gear set includes washers and clips main shaft gears 237067 1st gear main shaft oem 35025-79b 237068 2nd gear main shaft oem 35026-94 237072 3rd gear main shaft oem 35027-94 237069 4th gear main shaft oem 35028-94 237070 5th gear main shaft oem 35029-94 counter 237071 237072 237068 237073 237074 shaft gears 1st gear counter shaft oem 35622-79c 2nd gear counter shaft oem 35027-94 3rd gear counter shaft oem 35026-94 4th gear counter shaft oem 35625-94 5th gear counter shaft oem 35626-94 09 new s&s billet trap door kit for 5-speed transmission cases s&s billet aluminum trap doors are cnc-machined to meet the highest standards these trap doors are complementary for s&s basic case assemblies zpn 750605 750606 and 750607 also fit most 1986 thru 1999 evolution softail cases after minor modification each kit comes complete with gasket two ball bearings and all required mounting hardware 750608 billet trap door kit transmission shafts 237065 main shaft fits 1991 to present oem 35042-91 237066 counter shaft fits 1980 to present oem 35632-79 note the use of an electronic speedo on a 6 speed transmission on 1994 to present models may require the use of a recalibration unit such as zpn 236690 or 236082 09-019

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