WheelhorseBob 1,549 #1 Posted December 12, 2020 (edited) Well I guess I’ve gone a little deeper into this than anticipated. Any way I read a lot and the 121 I’m restoring had bad axle seals and break shaft seal. I watched a video on YouTube by VinsRj and said why not! Well here I am, everything except the seals seem perfect. Peace of mind! Edited December 12, 2020 by WheelhorseBob 3 2 Share this post Link to post Share on other sites
oliver2-44 9,853 #2 Posted December 12, 2020 For all the work that goes into a restoration. peace if mind is an excellent thing 2 Share this post Link to post Share on other sites
ebinmaine 68,330 #3 Posted December 12, 2020 Well done Bob! Ya need any help there's plenty threads and info on here. I'm only an hour away... 1 1 Share this post Link to post Share on other sites
WheelhorseBob 1,549 #4 Posted December 12, 2020 Some may have noticed that one 1533 bearing stayed on the axle. It seems to be in good shape as does the other. Question, should I remove it from the differential hub or put it back together the way it came apart? Thoughts? Share this post Link to post Share on other sites
WHX?? 49,157 #5 Posted December 12, 2020 I always put them back in the ways they came out just because of the wear pattern Bob. Was schooled to do this with tapered bearings so it stuck. Prolly doesn't matter a whole lot on the 1533's tho. 2 Share this post Link to post Share on other sites
ebinmaine 68,330 #6 Posted December 12, 2020 1 hour ago, WheelhorseBob said: Question, should I remove it from the differential hub or put it back together the way it came apart? Thoughts? It would bug me that it doesn't come apart but I don't know if it really matters. Share this post Link to post Share on other sites
WheelhorseBob 1,549 #7 Posted December 12, 2020 Ok so I tore into it a bit further. My right hand axle was very loose in the differential and the end of the pinion hub was chewed up, if that’s what it’s called. See pics. Although it was very loose I found no damage to anything. Almost looks like a poor casting. Anyway this area really doesn’t support the axle in any was, at least to my way of thinking the axle is supported by the pinion gears on one end and the Torrington bearing in the other. Thoughts? Am I missing something in my thought process? 1 Share this post Link to post Share on other sites
ebinmaine 68,330 #8 Posted December 13, 2020 That sure is ugly but I don't see any axle damage.... If you think you need internal parts lemme know. Share this post Link to post Share on other sites
pfrederi 17,866 #9 Posted December 13, 2020 Axles are loose in the differential. Normally the 1533 ball bearing wants to stay in the transaxle housing.... Share this post Link to post Share on other sites
WheelhorseBob 1,549 #10 Posted December 13, 2020 Well I’ve looked at this every way to Sunday and as ugly as it looks I really don’t think it is a functional problem. The ugly bore is not meant to support the axle in any way. The axle on the wheel end is supported by the Torrington bearing and the diff end is supported by the pinion gears. The pinion housing is supported by the 1533 bearing which is good. I think she’s fugly, but functional. 1 Share this post Link to post Share on other sites
WheelhorseBob 1,549 #11 Posted December 13, 2020 35 minutes ago, pfrederi said: Axles are loose in the differential. Normally the 1533 ball bearing wants to stay in the transaxle housing.... Agreed. Mines tight on both the pinion housing and the case so it should be ok I think? Share this post Link to post Share on other sites
stevasaurus 22,863 #12 Posted December 13, 2020 I see nothing wrong with your axle or anything else in your transmission. Your thinking is correct for how the axle is supported. I would put the 1533 back in the housing though. I would get a cocktail and sit back a while and enjoy looking at all those gears...and then put it back together. 2 Share this post Link to post Share on other sites
WheelhorseBob 1,549 #13 Posted December 14, 2020 6 hours ago, stevasaurus said: I see nothing wrong with your axle or anything else in your transmission. Your thinking is correct for how the axle is supported. I would put the 1533 back in the housing though. I would get a cocktail and sit back a while and enjoy looking at all those gears...and then put it back together. It’s in good shape for sure. Interestingly enough I was researching a new axle end cap, and low and behold they are still available from Toro. I won’t bore you with the price but suffice to say you could buy a 100 hr 520H for what it would cost to rebuild a 8 speed with new parts! One part alone was 700.00 bucks! 1 1 Share this post Link to post Share on other sites
stevasaurus 22,863 #15 Posted December 14, 2020 What is a new axle end cap...for a rear axle?? Don't think there is such a thing. There is for front wheels. Share this post Link to post Share on other sites
ebinmaine 68,330 #16 Posted December 14, 2020 2 minutes ago, stevasaurus said: What is a new axle end cap...for a rear axle?? Don't think there is such a thing. There is for front wheels. Perhaps the differential end pieces. Where the pinions and bull gear are. Share this post Link to post Share on other sites
stevasaurus 22,863 #17 Posted December 15, 2020 Nope...no end caps there. Maybe talking "C" clips, but they are cheap. 1 Share this post Link to post Share on other sites
