Mopar rear axle spotter's guide
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+ | ++introduction== | ||
+ | There have been several very good Mopar rear axles used through the years. This page will help ID them | ||
+ | ==ID by shape== | ||
+ | The easiest way to identify an axle is to look at the cover on the carrier housing: | ||
+ | *7-1/4" has a 9 bolt rear cover. | ||
+ | *8-1/4" has 10 bolts, evenly spaced. The cover is almost perfectly round. | ||
+ | *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. | ||
+ | *9-1/4" has a 12 bolt rear cover. Rear cover is roughly octagonal (stop sign-shaped). | ||
+ | *9-3/4" has a 10 bolt rear cover. The cover is wider on the driver side. | ||
+ | |||
+ | ==Casting numbers== | ||
+ | These may not be all the casting numbers that were ever used on the various axles, but are a starting point: | ||
+ | |||
+ | ;7-1/4 | ||
+ | :2070051 | ||
+ | :3507881 | ||
+ | :3723675 | ||
+ | |||
+ | ;8-1/4 | ||
+ | :2852905 | ||
+ | :3723598 | ||
+ | :3723599 | ||
+ | |||
+ | ;8-3/4 | ||
+ | :1820657 (small pinion shaft, up to 1964) | ||
+ | :2070741 (small pinion shaft, 1965 to about 1972) | ||
+ | :2070742 (large pinion shaft, 1957 to 1968) | ||
+ | :2881489 (tapered pinion shaft, 1969 to about 1974) | ||
+ | |||
+ | ;9-1/4 | ||
+ | :3507890 | ||
+ | :3507891 | ||
+ | :3723199 | ||
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+ | ==Resources== | ||
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[[Image:mopar axle.jpg]] | [[Image:mopar axle.jpg]] | ||
[[Category:Rearend]] | [[Category:Rearend]] | ||
[[Category:Identification and decoding]] | [[Category:Identification and decoding]] |