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chrisyarbrough · 04-05-2008, 09:18 PM

i have a 1992 z71 ext cab with a 350 my door sticker and glove box sticker is wore out. tag is missing on rear but i got these numbers off the ring gear 3988517 11-41 G.M.K can anyone tell me what it means

04-05-2008, 09:18 PM	#186
chrisyarbrough Registered User Status: Offline Join Date: Apr 2008 Member ID: 86673 Pics: My Gallery Location: georgia Posts: 1	Re: Rear End Ratio RPO Codes Here i have a 1992 z71 ext cab with a 350 my door sticker and glove box sticker is wore out. tag is missing on rear but i got these numbers off the ring gear 3988517 11-41 G.M.K can anyone tell me what it means