RPO Code Look Up?

[Hillbillybonez]

All, As with many newbies I wanna know which rear axls I have, Although I am Unsure still, I did a google search and came up with this.... Is this what I need to use to look up my axle?


http://aplsweb.com/Topics/TopicPix/RPO.pdf

http://www.cadillacfaq.com/rpo/

[djthumper]

Have you tried the search feature for the site? We actually have a list of the codes in the tech docs.

[Hillbillybonez]

Have you tried the search feature for the site? We actually have a list of the codes in the tech docs.

I did, but I must not bee doing the right search, Ill try again... Thanks

[djthumper]

http://www.offroadtb.com/articles/tech- ... cle-specs/

[mikekey]

It's not just that, I think this question is asked in about every axle thread or new person introduction. Matter of fact, I just answered it: viewtopic.php?f=72&t=4990

RPO Codes for gear ratios:

GU6 = 3.42
GT4 = 3.73
GT5 = 4.10

[AWCougar]

I was just asking if the rpo codes were elsewhere.

[Hillbillybonez]

May I ask which of these numbers do I use to look it up?

[Moots1288]

May I ask which of these numbers do I use to look it up?

gu6.. 342s

[mikekey]

May I ask which of these numbers do I use to look it up?

Any of them.

I see GU6 right there, so that means you have a 3.42 rear end gear ratio, no mention of G80 anywhere, so most likely, open rear end. (NO FACTORY LOCKER)

All the 3 digit numbers are RPO codes, or GM's codes for options.

[Moots1288]

May I ask which of these numbers do I use to look it up?

Got to read man, MikeKey gave you all the info right there, all you had to do is search for one of those 3 codes in which he supplied you with.

[Hillbillybonez]

Thanks for the help

[Moots1288]

Thanks for the help

No problem