Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Full model number? the standard LTX 1050 has a single hydro-stat transmission. And to remove axle shaft , the housing has to be split! The inner axle has a spiral ring on it, which is accessible only with the transmission split. Which means it needs to be removed from the mower.
See page 18 and 19 in the parts link above.
see question is still open, did you see my link?