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Differential numbers?

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Old Mar 15, 2015 | 09:55 PM
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Default Differential numbers?
My 1975 diff has this on the bottom -LR W 281 E1. Why is there no date code?
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Old Mar 15, 2015 | 10:24 PM
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St. Jude Donor '13-'14
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Originally Posted by mcltcb
My 1975 diff has this on the bottom -LR W 281 E1. Why is there no date code?
The casting date is on the side of the housing, drivers side right above the leaf spring.
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Old Mar 15, 2015 | 10:30 PM
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LR (3.36), Warren Axle Plant, Julian Date 281, Eaton Positraction, 1st shift
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Old Mar 15, 2015 | 10:44 PM
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Originally Posted by Revi
LR (3.36), Warren Axle Plant, Julian Date 281, Eaton Positraction, 1st shift
Revi does describe this correctly, as you can see it is built on the 281st day of the year. since LR was used for at least '75-'77 (and possibly more) you will need to verify the casting date on the side of the housing as I describe to identify the correct year.
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Old Mar 16, 2015 | 09:06 PM
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Originally Posted by LeMans Pete
The casting date is on the side of the housing, drivers side right above the leaf spring.
Thanks. I'll take a look there.
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