Do these numbers mean anything?
 

These are stamped on the passenger side axle tube of my 14blt rear axle.....do they mean anything?

Re: Do these numbers mean anything?
 

looks to me like "R F K G1572"

Re: Do these numbers mean anything?
 

Yes - typically they are codes for the ratio, locking vs open, and the manufacturing date code.

Unfortunately I do not have a secret decoder ring so I can't interpret it. I suspect someone on this site does.

K

Re: Do these numbers mean anything?
 

Thanks Keith.... I was hoping YOU would know....

Re: Do these numbers mean anything?
 

Someone (or someones) has a book on this, we just had a thread about 12 bolt stampings.

Re: Do these numbers mean anything?
 

Any idea what year?

Re: Do these numbers mean anything?
 

http://s28.postimg.org/ihftlesop/20140309_202957.jpg

That's so funny I literally just took this picture to ask you guys what it means.

My trucks a 1975 C20, Camper Special. Not sure about the rear end I was hoping this # could give me some information?

THE CODE IS:
KJN G3231

Re: Do these numbers mean anything?
 

a couple ideas. one a person that cant align anything...:lol: also where it was made, bolt pattern and then possibly productionnumber.... not necessarily all there but probably just location and number...

Re: Do these numbers mean anything?
 

KJN, 1975 c20, 4.10 open

Re: Do these numbers mean anything?
 

RFK 1976 C20, 4.10 open

Re: Do these numbers mean anything?
 

FYI, the codes are in the Factory GM Truck parts catalogs.

Re: Do these numbers mean anything?
 

THANK YOU!...now where do I download a copy of the GM parts catalog!?

Re: Do these numbers mean anything?
 

Thanks so much guys!

Re: Do these numbers mean anything?
 

My scans are massive PDF files...
Ian Harding hosted them for us along with a lot of other GM parts books here---->http://www.gmpartswiki.com/

Re: Do these numbers mean anything?
 

Yeah these are great.
http://www.gmpartswiki.com/getpage?pageid=54955 for 73-78
http://www.gmpartswiki.com/getpage?pageid=60411 73-78
http://www.gmpartswiki.com/getpage?pageid=57733 79-84
http://www.gmpartswiki.com/getpage?pageid=56090 85-91

Re: Do these numbers mean anything?
 

Thanks guys.

I was just coming back here to report this (SSTim pointed the wiki out to me).

K

Re: Do these numbers mean anything?
 

I just went through all that and could not find the codes. I have another one...RFH G2932.
Thank You


again, a 1977 C20

Re: Do these numbers mean anything?
 

73-78 Front and Rear Axle codes 1st page
79-84 Front Axle codes 1st page
79-84 Rear Axle codes 1st page
85-91 Front Axle codes 1st page
85-91 Rear Axle codes page 1

The Wiki has a search page...http://www.gmpartswiki.com/query

The parts books have engine, transmission, transfer case and other codes as well... Right along in the same group of pages.

Re: Do these numbers mean anything?
 

3.73 open but listed as a 76