Mopar rear axle spotter's guide

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(ID by shape)
 
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==Introduction==
 
==Introduction==
There have been several very good Mopar rear axles used through the years. This page will help ID them
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There have been several very good Mopar rear axles used through the years. This page will help ID the more commonly used/swapped rear axles from the 1950s to the present.
  
 
==ID by shape==
 
==ID by shape==
The easiest way to identify an axle is to look at the cover on the carrier housing:  
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[[File:Mopar rear id.jpg|thumb|left|600px|Image from [http://www.forbbodiesonly.com/moparforum/showthread.php?t=6190 forbbodiesonly.com]]]
*7-1/4" has a 9 bolt rear cover.
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The easiest way to identify an axle is to look at the cover on the carrier housing: <br><br> 
*8-1/4" has 10 bolts, evenly spaced. The cover is almost perfectly round.
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*7-1/4" has a 9 bolt rear cover.<br><br><br>  weakest
*8-3/4" has no rear cover. The back of the axle housing is round. The center section is removable from the front of the housing.
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*8-1/4" has 10 bolts, evenly spaced. The cover is almost perfectly round.<br> <br> 200-400HP max
*9-1/4" has a 12 bolt rear cover. Rear cover is roughly octagonal (stop sign-shaped).
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*8-3/4" has no rear cover. The back of the axle housing is round. The center section is removable from the front of the housing.<br><br><br>  strong  max 900-1000 HP
*9-3/4" has a 10 bolt rear cover. The cover is wider on the driver side.
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*9-1/4" has a 12 bolt rear cover. Rear cover is roughly octagonal (stop sign-shaped).<br><br><br> stronger
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*9-3/4" has a 10 bolt rear cover. The cover is wider on the driver side. strongest
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<br style="clear:both"/>
  
 
==Casting numbers==
 
==Casting numbers==
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:3507891  
 
:3507891  
 
:3723199
 
:3723199
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==Rear axle dimensions==
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[[File:Mopar rear axle dimensions.jpg|thumb|left|500px|Rear axle dimensions from [http://moparinterests.blogspot.com/2010/09/mopar-rear-axle-dimensions.html Moparinterests blogspot.com]]] <br style="clear:both"/>
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[[File:Mopar rear end axle flange id.jpg|thumb|left|900px|Axle flange dimensions from [http://moparinterests.blogspot.com/2010/09/mopar-rear-axle-dimensions.html Moparinterests blogspot.com]]] <br style="clear:both"/>
  
 
==Fender tag and broadcast sheet codes==
 
==Fender tag and broadcast sheet codes==
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*[http://www.genocide2600.com/~traviso/mml/bodydecode.html ''How to Decode your MoPar'']
 
*[http://www.genocide2600.com/~traviso/mml/bodydecode.html ''How to Decode your MoPar'']
 
*[http://www.allpar.com/ allpar.com]
 
*[http://www.allpar.com/ allpar.com]
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*[[Rearend identification]]
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*[[Mopar tapered axle rear brake conversion]]
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[[Category:Rearend]]
 
[[Category:Rearend]]
 
[[Category:Identification and decoding]]
 
[[Category:Identification and decoding]]

Latest revision as of 10:34, 19 November 2023

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