Can a 125 hydro axle be used on a 169?

[kalebevans]

I'm pretty new to the Cub world, and have managed to start out with a 169. It hadn't run in at least fifteen years, and when I was changing the fluid in the rear end, I managed to over-torque the bottom left bolt that holds the back cover and the hitch on. I don't really want to pull it all apart to put a new housing in. I've got access to the rear end out of a 125 hydro, and am wondering if anyone has tried swapping one in before. Or a 109, 129, or 149, for that matter. My problem could be welded, but the professional welder that looked at it said it should all be pulled apart for ease of welding and for cleaning after. I don't know how hard it would be to convert from external to internal brakes like I'd need to do, or if the sizing would even work. Any thoughts or advice would be appreciated.
Also, I'm in Utah, if that matters.
Thanks!

[bolivier]

You have options other than changing the entire rear end. You're not the first person to do this. Awesome that a 169 is your first tractor. I've never seen one for sale.

Please stay tuned for what others have done........

[J-Mech]

All the rear ends are the same. Only difference is internal or external brakes. Or, ported or non-ported hydro pump. The case it's self is the same. No matter what you decide, unless you "patch it", tear down will be necessary. Yes, the rear in a 125 will work, difference is the brake. But you can change out the front cover and axles. The case is the same no matter what brake style you have.

[sawdustdad]

I'd put in a helicoil thread repair.

[crossingcrown]

I just did a 129 rear to a 1250.. it was a little tuff for me being new to "tractor working" itself.. I also have like no tools.. very, very, limited to what I have.. And I made it work.. If you do move forward with a transplant,,.. Just look out for minor differences.. like rods and what not.. Ball joint to a rod fitting for your axle.. things like that.. I got a lot of good help from here.. Be very carful on removing your rear.. It will want to drop forward if you are not ready for it.. Don't know what you have to use, so BE CAREFUL!! if it drops forward, than you bust up some things.. Look up "Broncocarl" on youtube.. you will see how bad it can be.. you don't want that to happen... Good luck with what ever you decide.

[EarlJ]

I had a 104 with the exact same problem. This one had bits of cast in the belly when I changed the gear oil ( it was leaking on the bottom left side). When I reassembled I used a very heavy coat of grey permatex, torqued every thing down and permatexed. A bolt in the broken hole, let it dry overnight before filling and no leaks. Ran that tractor for a year and a half before selling and not one drop of fluid ever escaped from it.

[CADplans]

I think I would fab a rear cover out of 1/2" thick steel before I would do a swap.

If the tractor works, why do a heart transplant to fix a cut finger??

If you want to pull, fab a hitch that attaches to the axle housings,,,,



On this tractor, I could take out the four lower cover plate bolts and there would be no change in the tractors capability to pull.

[kalebevans]

Thanks for your help; I really appreciate it. I'll let you know how it turns out once i get the two axles side by side and make a decision. Here are a couple pictures of the machine and its implements so far.

[crossingcrown]

Nice gear, lots of toys.. Still looking for a plow myself.. Good luck, have fun, post pics..

[64fleetside]

Look at all those attachments, I'm jelly.