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MrFC3S · 11-27-2005, 06:22 AM

possiably a stupid Noob question, are these codes on all GM vehicles? like all years? i got an 87 GMC FS, so is it there? and where would i find it? im mainly looking for the front and rear gear ratios code. would the codes tell me that?
WHATS THE DEAL WITH THE CODES?

11-27-2005, 06:22 AM	#7
MrFC3S new and improved! Status: Offline Join Date: Nov 2005 Member ID: 37507 Pics: My Gallery Location: NC Posts: 44	Re: Ultimate RPO Database possiably a stupid Noob question, are these codes on all GM vehicles? like all years? i got an 87 GMC FS, so is it there? and where would i find it? im mainly looking for the front and rear gear ratios code. would the codes tell me that? WHATS THE DEAL WITH THE CODES?