Welded my rear Diff (pics)
#1
Welded my rear Diff (pics)
So after doing some searching to make sure I had a clue what I was doing. I tore down the axle to give it a "Miller Locker". I've never pulled a axle shaft, let alone the 3rd member, so it was all new. Went pretty smooth, the left axle shaft needed a deadblow hammer to get it loose, but that was the extent of it. I left the carrier in the 3rd member, packed damp wash clothes in the axle input slines to keep the slag out (worked well).
Cleaned the spiders as best I could with some degreaser, then just alot of tedious drying and cleaning in each gear tooth to make sure I got good welds.
I first made some big tack welds from the center pin to the small spider gears before placing the steel plate in.
I used some 1/4" plate steel cut to fit halfway down in the spiders, and welded it to kingdom come. I did one pass, then let it cool for 10 minutes, and repeat until all 4 corners were done to try and keep the heat down. I used my Miillermatic 175 on full blast, and it got great penetration. I did not weld to the case at all, figured that would just put more stress in places that it didn't need.
I got some slag because I kept hitting the next tooth as I moved over, and the change of hieght threw me off. Overall, pretty easy job, took me going really slow about 4 hours. Still need to bleed the rear brakes some, then go try and get stuck somewhere
(and not break it
)
Pulled

Started to clean it up

Still cleaning

Test fitting the plate

Welded, and Rtv ready

Cleaned the spiders as best I could with some degreaser, then just alot of tedious drying and cleaning in each gear tooth to make sure I got good welds.
I first made some big tack welds from the center pin to the small spider gears before placing the steel plate in.
I used some 1/4" plate steel cut to fit halfway down in the spiders, and welded it to kingdom come. I did one pass, then let it cool for 10 minutes, and repeat until all 4 corners were done to try and keep the heat down. I used my Miillermatic 175 on full blast, and it got great penetration. I did not weld to the case at all, figured that would just put more stress in places that it didn't need.
I got some slag because I kept hitting the next tooth as I moved over, and the change of hieght threw me off. Overall, pretty easy job, took me going really slow about 4 hours. Still need to bleed the rear brakes some, then go try and get stuck somewhere
(and not break it
)Pulled

Started to clean it up

Still cleaning

Test fitting the plate

Welded, and Rtv ready

#4
Driving it now reminds me of the little Kubota tractor I had when u stomp the diff lock pedal. I love it. Turning difference isn't noticeable to me, I can see the tire wear on the road would come quicker though. Overall, best 4 hours of work i've done.
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#8
I'm guessing that its a 110v welder? If so, I wouldn't use that. The welds need to really dig into the spiders, and a 110v just wouldn't have the juice to do that in my opinion. Flux wire in your gasless welder seems to burn hotter, but it still wouldn't come close to a 220v welder on max, and I didn't even penetrate as much as I really wanted.
#11
#12
Nice, we plan on welding up a buddy's diff soon..
We are going to plate it like that i think.
And FWIW, ive heard a lot of people welding theirs with 120V and not having a problem.
You should be fine if you take your time IMO.
Just like everything else, prep is super important, and then make sure you get good penetration.
We are going to plate it like that i think.
And FWIW, ive heard a lot of people welding theirs with 120V and not having a problem.
You should be fine if you take your time IMO.
Just like everything else, prep is super important, and then make sure you get good penetration.
#14
Next up for me is gearing. As of now the stock gearing puts way to much stress (either riding the clutch, or just lugging it) to really enjoy the type of offroading I like. 200 to 1 sounds good
, not sure i'll get that low, but a 4.71 t-case seems nice as a start.
, not sure i'll get that low, but a 4.71 t-case seems nice as a start.
#18
I'm guessing that its a 110v welder? If so, I wouldn't use that. The welds need to really dig into the spiders, and a 110v just wouldn't have the juice to do that in my opinion. Flux wire in your gasless welder seems to burn hotter, but it still wouldn't come close to a 220v welder on max, and I didn't even penetrate as much as I really wanted.


