Mopar rear axle spotter's guide
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==Introduction== | ==Introduction== | ||
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. | 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: | + | [[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. | + | 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. | + | *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. | + | *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). | + | *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. | + | *9-1/4" has a 12 bolt rear cover. Rear cover is roughly octagonal (stop sign-shaped).<br><br><br> stronger |
| + | *9-3/4" has a 10 bolt rear cover. The cover is wider on the driver side. strongest | ||
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==Casting numbers== | ==Casting numbers== | ||
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:3507891 | :3507891 | ||
:3723199 | :3723199 | ||
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| + | ==Rear axle dimensions== | ||
| + | [[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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The broadcast sheet may or may not have ever been included with any particular vehicle. Codes on the fender tag or broadcast sheet that pertain to the rear axle size and/or ratio have a suffix letter of "A" or "D" for '60s-'70s Mopars, possible other years as well. | The broadcast sheet may or may not have ever been included with any particular vehicle. Codes on the fender tag or broadcast sheet that pertain to the rear axle size and/or ratio have a suffix letter of "A" or "D" for '60s-'70s Mopars, possible other years as well. | ||
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