Pinion removal problem

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Joined
Oct 31, 2007
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Phoenix, AZ
Newbie question. I'm so new to this that I don't even know the names of some of the parts, so bear with me.

Question is that I can't seem to remove the axle nut. The yellow arrow shows the direction I'm turning, but is not even moving at all. Am I missing something?

I'm using a screw driver to stop the flange from moving, I already broke the unbreakable craftsman screw driver.

Also I already removed all nuts around the housing (third member?), should I be able to just pull it without removing the axle nut? I read some posts about the issues of removing the housing but does not say what nuts were removed.

So, why am I doing this if I'm a newbie? I guess because I have this extra pair of FJ60 axles and I want to learn a thing or two. Maybe upgrade to 4.88 in the process. I have been following IH8MUD and I learned new things without having to ask, but now I'm stuck. Thanks for the help.
diffsmall.webp
 
axle shafts have to be removed before the third will come out.

If they are already pulled, it just takes a bit of persuasion..


That nut is staked on. Look at the nut right below the arrow, you have to remove the portion of the nut that is bent into a keyway looking thing on the pinion. Also that nut should be torqued on there fairly seriously. It will take a lot of leverage to break it loose even if the nut is unstaked. I would use a thick bar that goes through 2 of the pinion flange bolt holes and has been clearanced to allow the pinion nut to be accessed. Then you have 2 long pieces to work with..
 
What Mace said about "unstaking the nut" and it also helps to use an impact driver. If the axles and brake parts are still assembled, try engaging the parking brakes to help keep the pinion from turning.
 
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Thanks for the quick response.

I took care of the nut, based on your comments I believe my problem now is that I need more leverage.

I should have asked first before I started this project, because I already removed birfieds, shafts and all parts on each side of the axle. :bang:

I'll try again later today
 
The pinion nut holds the drive shaft flange on and holds the pinion shaft. It does not need to be removed to take the third out. Air impact will take the nut off if you are rebuilding the third and or installing new gears.

Here is a link to a good write up on rebuilding a third.

Rebuilding and setting up a Land Cruiser differential
 
Thanks for the quick response.

I took care of the nut, based on your comments I believe my problem now is that I need more leverage.

I should have asked first before I started this project, because I already removed birfieds, shafts and all parts on each side of the axle. :bang:

I'll try again later today

Leverage is good. I believe the torque specs on that nut are somewhere in the 180-300 ft lb range. :eek: :)
 
The pinion nut holds the drive shaft flange on and holds the pinion shaft. It does not need to be removed to take the third out. Air impact will take the nut off if you are rebuilding the third and or installing new gears.

Here is a link to a good write up on rebuilding a third.

Rebuilding and setting up a Land Cruiser differential

Yeah, I found the link while doing my research, very useful for the next part, once the housing is removed, but I guess step 1.2 here:

1.1 Unstake the pinion flange retaining nut by grinding off the staked portion of the nut with a cut off wheel, angle grinder or Dremel tool. You don't have to grind off the staked part, but it makes it easier to get the nut off.
[SIZE=+1]1.2 Remove the pinion nut. Use the pinion flange holding tool to prevent the pinion from turning.[/SIZE]

is missing some kind of note, specifically the torque that Martin (MDH33) mentioned.
 

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