small progress on big swamp buggy

I got the hub open, found two huge nuts, eight-sided. And remnants of a locking washer tab thing. I'm assuming these go onto the spindle.
New problem: threads on spindle are ground up, worn bad. How do I deal with this? The big nuts won't turn on more than 2-3 rotations.

what I use is a thread chaser they work well and truck parts place should have them

You can use a thread chaser file.
thread file

That is machine shop work. A chaser wont fix them
mangled threads. I would have got the skidder to drag
that home and then do the job properly.

That brg. Looks bad also and that grease has water in it. And that machine looks like u haul people around with it. Lucky u didnt flip it and have some get hurt or worst. Then you have even a bigger problem on your hands.

I am sure you need new parts. Those
threads are gone. They are available
from, like Rock Auto. I bet you have water
in most of your rig.

Is there a particular name for that fancy lookin' doo dad?

Mike

This is a real rough guess but there is a somewhere
over 50 percent chance that a radiator hose clamp
(two would be better if they will fit) would retain the
bearing on the shaft to drive it 1 mile. That is if the
terrain that you will be driving it on is fairly flat, as in
not going through ruts or road ditches or things of that
sort. You will need a generator and a 4 inch grinder or
a battery powered one to grind down the ..muffed.. up
areas of the threads and the seating area of the outer
bearing. Go slow like 10 mph. You will either need to
replace the damaged parts or have a machine shop
repair it ($$?)
In your first post on this problem you said:
..the knuckle started oozing/dripping out a white-ish
sauce while it was tilted sideways. What's that?..
If you did not figure it out that is the gear lube out of
the front differential mixed with water as VicS is
suggesting.
I believe I see some brand of a V8 engine in that
machine which means it can probably move at a pretty
good speed. If you frequently use this machine as its
name implies..swamp buggy.. as in running it in water
over the axle then the following is a pertinent action.
About every 10 - 15 hours of use I would suggest
jacking up the front end and checking for play in those
bearings and repair as needed. I cannot see for sure
but if there are no seat belts on that thing; really even
if there are I hope you keep your liability insurance
premiums paid up.
Front fell off post

Get a new nut and see if it will work, maybe use a thread file.

Try a look for a outfit called Axle surgeons they will come out and cut off the old spindle and weld on a new one all aligned ready to go. They go back of the bearing journal so as to not have to remachine the threads. they do it on the spot where you are. I have no idea what the cost is and have never done anything with them ,just read the ads in magazines. MI truck Trader has ads for them in it.

Here ya go!!!

https://www.amazon.com/OTC-7402-Universal-Outside-Thread

Have one in my tool box but I'm 1000 miles away

I have used them for over 35 years , back when I first used them it was around 400.00 now it is over 1000.00, they are a franchise I believe there was 2 in Indiana, one worked north of Indy the other worked south of indy, you have to have axle housing number, so they know which stub to use (they bring it with them)every time I used them they did excellent work

About the same setup that's on my Oliver. Lucky for me my threads didn't get damaged like that.

There are scads of machine shops in Wisconsin.

That repair does not require an axle stub to be welded on. The axle stub is replaceable. It will unbolt by removing the circle of bolts behind it. Parts for them are expensive because they are used in competition mud bog trucks and rock climbers. Might try the guys in the link for parts.
Military surplus

they are called Thread Chasers any truck place knows what they are , that is the only name I know them byfor the last 50 years

Looks like the front axle on one of our snowblowers that I am putting back together last week. Our's had a large nut that was split and a square flat washer that fit in groove of the spindle and the split of
the nut to lock it in place. Oshkosk truck from 1984.

Wish we were closer I have a special tool that has diffrent blades and fits you spindle and will
rework the threads , works like a big tap.

(quoted from post at 13:23:02 12/09/23) That repair does not require an axle stub to be welded on. The axle stub is replaceable. It will unbolt by removing the circle of bolts behind it. Parts for them are expensive because they are used in competition mud bog trucks and rock climbers. Might try the guys in the link for parts.
Military surplus

Click to expand...

This.

At the very least, 6 bolts and the axle stub comes off and you can take it to a machine shop. Probably cheaper to replace though.