I have a bx23 know what you are talking about....let me get my repair manual out and look.....these manuals are not always right......here goes......real axle on bx 23 says......remove the oil seal with a screw driver.....then remove the internal snap ring.....tap out the rear axle from the transmission case or rear axle cover....on my bx 2350 which uses a different trans....almost looks alike....on the right side of the bx 2350 you have to split the trans.......so i think you luck out.....order of parts are 1.....rear axle.....2oil seal.......4 internal snap ring....then just pull out axle and replace the parts......deeper inside is a bearing and external snap ring.....but once you get the axle out run you finger around the bearing and if its ok....just replace the seal......looks like you need a 90 degree snap ring tool to get snap ring off or at least a 45 degree one.
Good Luck....why I always buy a repair manual cheap for use diy.
Art
