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Old 04-25-2008, 03:50 AM   #1
ABHaulR
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Looking for option code

on the inside of the glove box my jimmy has a code for a posi rear end,
looking for what kind? code is 4G80AM
any help would be great. thanks Dwayne
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Old 04-25-2008, 06:57 AM   #2
old man jimmy
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Re: Looking for option code

No help to you question. But for information. I ordered my 72 Jimmy with posi. and the glove box lists the code 1G8010. Mines 4 speed, don't see what difference that would make. But mine is an eaton. Came with 307 gears, but changed to 373 when they made the nation speed limit 55 years ago. Also I remember mine was made in St. Louis. Unless they have different codes for different plants.???
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Old 04-25-2008, 09:47 AM   #3
Mint68
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Re: Looking for option code

My spid says "4G80AG Rear Positraction A", wonder what the differenc of your am and my ag?
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Old 04-25-2008, 07:22 PM   #4
ABHaulR
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Re: Looking for option code

yea, ill have to post the whole spid so it can be broke down. thanks for the
input. Dwayne
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