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Can anyone help me out with this 489 date code? #2625124
02/23/19 03:18 PM
02/23/19 03:18 PM
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chrisf Offline OP
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8U31 date code on a 489 case. Can anybody give me some info on this date ? Not like the normal codes

B4F50F94-BF1F-494B-AFAA-A1EB66C8DBFE.jpeg5615F076-1729-4646-A324-A655D08DFF2B.jpeg
Re: Can anyone help me out with this 489 date code? [Re: chrisf] #2625133
02/23/19 03:42 PM
02/23/19 03:42 PM
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N.E. OHIO, USA
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I'll take a poke at it and say it's 303rd day of 1971 scope

Re: Can anyone help me out with this 489 date code? [Re: A12] #2625134
02/23/19 03:49 PM
02/23/19 03:49 PM
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is it assembled? original mopar gears? what's the date on the ring gear?

Re: Can anyone help me out with this 489 date code? [Re: chrisf] #2625141
02/23/19 04:15 PM
02/23/19 04:15 PM
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original gears were swapped out for others but they did come with the car.(late 69 i think) we are just trying to figure out if its the original case.

A12 how did you get that date? nothing we have found decodes dates that way. looked through other 489 cases we have and decoded them all no problem.

Re: Can anyone help me out with this 489 date code? [Re: chrisf] #2625164
02/23/19 05:30 PM
02/23/19 05:30 PM
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Originally Posted By chrisf
original gears were swapped out for others but they did come with the car.(late 69 i think) we are just trying to figure out if its the original case.

A12 how did you get that date? nothing we have found decodes dates that way. looked through other 489 cases we have and decoded them all no problem.


Just took a WAG to kickstart your post......usually when I or someone is so far off with a reply then questions get answers thrown at it grin

Wouldn't the 8-3/4 axle housing also have a date code on the (top?) left side that would be close to the 489 date code???


Mike

Re: Can anyone help me out with this 489 date code? [Re: A12] #2625240
02/23/19 09:56 PM
02/23/19 09:56 PM
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Looks lake August 3, 1971 to me... scope


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Re: Can anyone help me out with this 489 date code? [Re: chrisf] #2625322
02/24/19 03:47 AM
02/24/19 03:47 AM
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thanks for the replies guys. so the "U" was possibly a filler until the month turned into a two digit (oct-dec) date?

Re: Can anyone help me out with this 489 date code? [Re: chrisf] #2625611
02/24/19 08:56 PM
02/24/19 08:56 PM
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The 303rd day of 1971 would be October 30, 1971 if that has any significance? Have you checked the date code on the axle and diff housing yet?

Last edited by A12; 02/24/19 08:58 PM.






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