Front Axle Rebuild and Diff Removal Help

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Joined
Jun 11, 2025
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Location
Mississippi
First time post here but have been using the site religiously for months. Hoping somebody can help me out or set me in the right direction. I recently began a front axle rebuild which included pulling the front diff to fix a snapped stud and replace the rest of the studs as well. Aside from stuck on tie rods, a snapped knuckle stud, and a broken wiper retainer bolt it hasn’t been so bad. I now know that I should have locked the front diff before removing but I did not do so when it came out. Not sure how it was so easy to pull out not having done so but no issues there. It was a bit sketchy getting the diff back in but everything slid in fine, locker actuator went back on easy, and the axles slid in with no issues. After I completed the full knuckle rebuild I am about to put the truck on the ground but I cannot get the axles to rotate by hand. They rock back and forth and I can see the driveshaft attempting to rotate but I cannot get the wheels to spin. I haven’t filled the diff with oil yet but I can’t imagine that’s the issue. I don’t want to put the truck down and try to move it again until I’ve got this figured out. Does anyone have an answer and hopefully a solution to whatever it is I’ve done to my truck?
 
You mentioned that you had difficulty "getting the diff back in", did you remove the differential/carrier ("pumpkin") from the axle housing??
 
Is the transfer case in N?
 
I did completely pull the diff out. It was sketchy laying in the driveway trying to benchpress it over my face but finally slid in no problems. The transfer case is not in N. I never cycled the actuator. I am wondering if it’s possible I manually slipped the “fork” in the diff to locked and that’s why the axles don’t rotate opposite of each other like they do before I pulled everything?
 
If the fork wasn't in the locked position, the axel shaft wouldn't go back in. So, yes the diff is Locked.
Put the t-case in N and I bet the wheels will rotate in the same direction and the front propeller shaft will spin.
 
Yes both wheels off the ground for the entire time. Will test t-case in morning. Since the actuator wasn’t cycled to locked and I put the diff back in with it locked I’m assuming I need to pull the actuator and try to “unlock” it before reinstalling? Or pull the actuator and try to lock all 3 on the knob and then install with actuator in locked position? Or is this inviting too many more problems to my situation?
 
Just for reference, the front differential does NOT need to be locked in order to prevent woe and strife when reinstalling axle shafts. Locked or unlocked should make no difference, although I have never done it locked. IMO, unlocked would be easier to line things up.

It is the FACTORY LOCKED REAR that can cause issues if the axle shafts are removed with the rear diff unlocked. With the rear unlocked, the slide collar can slip down inside the diff housing making it impossible to reinstall the rear axle shafts. Woe and strife will certainly follow.

Again, this is only for the OEM factory locked rear. I have not heard of any issues with aftermarket lockers installed on non-factory locked rears.

Also, locking the rear diff before removing rear axle shafts is NOT MENTIONED IN THE FSM in the rear axle maintenance section. It is a very bad omission IMO.
 
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Thank you for clarifying that @jonheld , I had incorrectly assumed the front and rear locker axel assembly/disassembly were the same.
And for sure ARB lockers don't matter one way or the other.
 
Don’t want to leave this unresolved in case someone else is as dumb as me in the future. If you have the oem front locker and need to remove it, I suggest watching OTRAMM’s video on rebuilding the front differential.



Removal: ~10:30 to 20:00
Install: ~1:07:00 to 1:18:00

I had unknowningly manually locked the front differential during reinstall. It was extremely easy to manually unlock again so that it matched the locker actuator. Remove the 2 nuts from the studs and one bolt holding the actuator in and slide the “fork” on the locking mechanism towards the right side wheel.

Everything is operating normally now and driving as expected. I appreciate everyone’s help in my little dilemma.
 
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