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Thread: 85 CJ7. Pulling out axels

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    85 CJ7. Pulling out axels

    AMC 20 rear end. One piece Yukon Chrome moly axels. Has an aftermarket air locker diff. Pinion bearing pooped the bed and I am rebuilding. I do not know the brand of the air locker. I need to pull the axels to rebuild. I am a rookie. Sorry.
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    The axle shafts on that axle are retained by the 4 bolt flanges at the outer ends. These are the same bolts that retain the brake backing plates.

    If you are new to this, do you have access to a press and bearing separator to replace the inner pinion bearing? Don't forget to keep track of all of the shims when you disassemble the pinion and remove the races. It also wouldn't hurt to double check the pinion depth when the new bearings have been installed to make sure you are good to go. There is no guaranty that the new bearings and races will be exactly the same thickness.
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    That was quick thank you. You mean the nuts on the outside? The same side as the brake shoes ECT? then just brute force and they come free?

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    That is correct. Assuming the shafts are using tapered roller bearings and not ball bearings, there shouldn't be much of any brute force required once the nuts and backing plate are removed, though. There isn't anything pressed in if tapered roller bearings are used. The bearing retainer is held in with the 4 bolts and the bearing and shaft will come out easily with the retainer. The race is pressed into the housing but it does not need to be touched unless it is to be replaced.

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    These bad boys? Possible to do without disconnecting brake lines?
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    Quote Originally Posted by Midlifecrisis View Post
    These bad boys? Possible to do without disconnecting brake lines?
    Those are it. I don't think you need to pull the brake lines, but I'll defer to CTD.

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    I think it will depend on the backing plate....but you should be able to leave the backing plate in place and therefore not have to touch anything on the brakes. Just remove the nuts and the bearing retainer plate will come out with the shaft.

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    I will just add that you should get a punch or stamps and label the carrier caps so you don't get them mixed up before you take them off! take your time its not black magic its just math and specific tools
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    Those caps *should* already have corresponding stamped markings to denote their proper orientation from the factory.

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    Thanks for the info. I did have to disconnect the brake lines. It wants to all come out. Now for the pinion nut. I don't have a big enough socket and today is Canada day. so nothing is open.
    Any idea the size?

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    all the ones I seem to work on are like 1 5/16" or 1 1/8" or something around there and I use all 3/4" drive stuff on pinions those crush sleeves require old man strength! haha some specs are like 650ft lbs to crush a crush the sleeve

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    If the gears were done with the locker install, it may not have a crush sleeve. It may have shims instead.

    If you don't have air and a strong gun, usually, the first thing you do when disassembling an axle is remove the driveshaft and get the pinion nut cracked free with the vehicle weight sitting on the tires prior to any other disassembly. Otherwise, it will be extremely difficult to stop the carrier from spinning while trying to undo the nut.

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    Thanks for all the advice guys. I ended up taking it to a garage. Received some bad news. apparently the housing is snookered along with the axels,yoke and probably the locker. I am trying to locate a complete AMC 20 rearend or at the very least the housing. I have the crown and pinion for it so i am trying to stay with the same rear end. its a wide track. i am having no luck finding one. any ideas where i can locate one?

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    Pm 13 jeeps. Good chance he has what your looking for. I also found a guy on kijiji that has nothing but jeeps. I screen shot his ad. Hopefully ypu can still read it.
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    i have a amc20 wide track housing that you can have
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    includes carrier with 3:54 gears (i believe)

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    Thank you for all your help. I ended up getting an entire rear end for a great price. She is on the road again but now a new challenge.
    Sorry for the late reply. I have been out of the country for a few months. Glad to be back.

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