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Old August 12th, 2007, 10:19 PM   #1
hoss
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Default Jeep axle ID?

My neighbor is big into jeeps, and he has this set of axles he's getting rid of. He thinks they are from an early 70's Jeep ______ (we dunno) can anyone fill in the blank?

Front axle:
It looks like about 53" WMS to WMS.
Lockouts and 5 x 5.5 bolt pattern

Rear axle:
Just what u see in the pictures - 5 x 5.5 bolt pattern and non c-clip? wierd cap things on shafts confuse me? I'm not too up on these things yet.

What other info do you need and where do I find it?

Thanks guys!
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Last edited by hoss; August 12th, 2007 at 10:25 PM.
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Old August 12th, 2007, 10:20 PM   #2
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What pictures?
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Old August 12th, 2007, 10:23 PM   #3
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soands like an amc 20 rear... is it perfectly round pumkin on it?
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Old August 12th, 2007, 10:25 PM   #4
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those pics, sorry forgot at first
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Old August 12th, 2007, 10:27 PM   #5
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30 front not sure about the rear after seeing the pics
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Old August 12th, 2007, 10:29 PM   #6
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Quote:
Originally Posted by hoss View Post
What other info do you need and where do I find it?
I hope you don't want to put them under the rig in your avatar, they'll be about 7" too narrow.

Sounds like narrow track CJ axles from the 53" width. Likely a 30 up front and a D44 or AMC 20 in back. Like above, if the cover is round it's an AMC 20, otherwise probably the D44.
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Old August 12th, 2007, 10:33 PM   #7
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both axles are leaf sprung as well
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Old August 12th, 2007, 10:34 PM   #8
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I'm not looking to upgrade, just helping a neighbor ditch some parts. if they are worth anything I'll sell them for him. Thanks for the info.
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Old August 12th, 2007, 11:37 PM   #9
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The rear is an AMC 20. It has a two piece design where the outer flange is a seperate part from the shaft itself. They are 29 spline, and the weak points are from where the flange threads onto the shaft and the housing itself is generally known to be weak near the center section. The nut is inside of the weird cap thing that you are referring too.

The front is a Dana 30, narrow track as well. 27 spline inners.

Guessing from the fact that the front has disc brakes (which were option in 1976, and were standard in 1977) I would have to say that those are from a later 1970's CJ. During this time 76-78, they used a larger brake setup. There should be like 6 bolts on the mounting bracket between the knuckle and the spindle if they are from those years. If it is from a 1979 or later, they used a 2 bolt mounting setup on the bracket. Judging from the WMS to WMS measurements, they would be a narrow track model. These are still fairly common
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Old August 13th, 2007, 09:03 AM   #10
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Yeah, depending on the brake craliper setup they are 76-81 axles. Most likely they are 3.55 gears.

The rear isn't worth much, unless someone want spares. The front is nice because its disc brakes and the 6 bolt hubs, which are good upgrades either to later jeeps with 5 bolt hubs or earlier non-disc axles.
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Old August 13th, 2007, 02:42 PM   #11
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You can see the 6-bolt caliper mounts in the pictures. The front has the big rotors and the rear should have the big 11" finned drums. I just swapped that setup onto a set of wide-tracks this weekend.
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