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Unread 12-02-2013, 03:52 PM   #1
atxjeep79
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1979 CJ7 
 
Join Date: May 2011
Location: austin, TX
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Moser AMC 20 upgrade question

I am installing the Moser one piece kit in my 79 CJ7 and so far so good was able to get everything out, but my question is about the bearing clearance.

So I put in inner seals and the press ring and went to test fit the bearing for clearance and Moser recommends that it be within .02-.08 and on the driver side I am within but barely .075 and on the passenger side it is over by about .025 reading .105

Moser recommends that you grind the press ring for clearance so should I get new spacer rings and inner seals from moser(since I have a feeling I will destroy the old ones in the removal process) and take them to a machine shop or can I use shims like the ones installed on the driver side originally to gain the required clearance.

I know there are a million threads on this just wanted an opinion on using shims instead of grinding the spacer ring is it the same difference?

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Unread 12-02-2013, 04:13 PM   #2
LumpyGrits
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Make sure the inner seal is at the same depth on both sides.
Make sure the axle bearing is set up against the 'shoulder/stop' on the axle.
LG
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Unread 12-02-2013, 04:30 PM   #3
skizriz
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I have heard of people using the original shims instead of grinding the spacers.
Other than being more surfaces to seal, i dont see Why it would be a problem.

Mine squeeked by without needing any grinding, so I cant say from personal experience either way.

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Unread 12-03-2013, 08:30 PM   #4
atxjeep79
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Thanks guys I think that I will order some more spacers and have them ground down just to be on the safe side
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Unread 12-04-2013, 12:05 AM   #5
big_o_tom
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1978 CJ7 
 
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Location: Tazewell, Tn.
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I used stock axle shims to get the perfect "preload" on the model 20 that was in my jeep when I bought it. Ended up swapping the rear end for a dana 44, but the shims did just fine.
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