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  #1  
Old October 15th, 2007, 15:08
fuzzydog fuzzydog is offline
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Wide track AMC 20 rear axle swap in...?

Someone talk me out of this insanity! I've done a lot of searching on the net these days for AMC20 info and I bet that this subject has the most conflicting info on the whole intardweb!
I just picked up a basketcase 1980 Chero Chief with widetrack AMC20 and D44 in the front. i really just wanted a D44 front, but I do want to go full width into my 1990 XJ.
So I have the D44 for the front, but it has 6 on 5.5 bolt pattern. My rear 8.8 has 5 on 4.5 pattern, so why not slip in the widetrack AMC20 while I'm at it?
First of all this is a Chero AMC20, not a CJ so it has the one piece axles and (reportedly) thicker tubes.
A quick look at Randy's R&P and I can get 4.56 or 4.88 R&P and ARB locker for the AMC20.

Never mind the get a Dana60 spiel - I do not want that big of an axle.
Tire size will go up to 35 and possibly 37's.

So, why shouldn't I do this?
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  #2  
Old October 15th, 2007, 15:15
unclethumbtack unclethumbtack is offline
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Re: Wide track AMC 20 rear axle swap in...?

I just got rid of a W/T Cherk and the amc 20 in them is just as strong as the 44 I welded mine and and stitched the tubes and ran 35's hard, never had a problem.
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  #3  
Old October 15th, 2007, 15:49
fuzzydog fuzzydog is offline
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Re: Wide track AMC 20 rear axle swap in...?

That's what I like to hear - real world, this is what I did type of experiences. Thanks for the input unclethumbtack (I bet there's a story behind that nickname...?)
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  #4  
Old October 15th, 2007, 18:33
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DaveW DaveW is offline
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Re: Wide track AMC 20 rear axle swap in...?

I'm running a 20 Metric ton from an MJ. I am the second owner. It worked well with no problems for the first owner and has been great for me. Both of us have run 285-16s.
I got it after talking to another M20 owner. He never had a problem running 35s.
Yes, the axle tube is larger (if I remember 3") than the CJ version.

Just be ready to dump a bunch of gear oil in that baby.
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  #5  
Old October 15th, 2007, 19:00
unclethumbtack unclethumbtack is offline
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Re: Wide track AMC 20 rear axle swap in...?

If you want to know everything you could ever know about the amc 20 go over to ifsja.org and search amc 20 strength. It's an ongoing battle.
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  #6  
Old November 4th, 2007, 14:40
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Comanchedude Comanchedude is offline
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Re: Wide track AMC 20 rear axle swap in...?

I run the factory AMC20 that came in the MJ (or some say its really a 23) in my MJ
I have it locked and running 33" tires now and I do push it very hard I dont have any worries.

just get a real diff cover like the one I have, the factory one is really a joke and wont take any abuse at all..none


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  #7  
Old November 4th, 2007, 18:02
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lancey3 lancey3 is offline
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Re: Wide track AMC 20 rear axle swap in...?

wow what a cool lookin axle.
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  #8  
Old November 4th, 2007, 18:03
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lancey3 lancey3 is offline
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Re: Wide track AMC 20 rear axle swap in...?

wow what a cool lookin axle.
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  #9  
Old November 4th, 2007, 23:11
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IslanderOffRoad IslanderOffRoad is offline
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Re: Wide track AMC 20 rear axle swap in...?

I had a 20 in an 83 Chero W/T... good axle. Very different from the CJ one which has the bad rep.

I'd run it, almost kept mine for the axles for my XJ.
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