I found a guy with a rear out of a 93 f250 but the axle code doesnt match anything I have been able to find.
S844F 55 88 3L19 im hoping the 3L19 means limited slip but I havent been able to confirm this.
Anyone have any ideas on decoding this one?

 

Not sure but I think that the first "55" is the diff ratio. Is it a tag number or some sort of sticker number? Picture? Pictures are always good.

Some links -
http://www.differentials.com/technic...dentification/

Not seeing a 3.19 ratio, but do see L = November - http://www.foureyedpride.com/joom/in...le-tag-decoder

 

 

Yea its looking like this is an open rear guess the hunt continues. Thanks for the help man I appreciate it

 

Does look like an open 3.55.

I put a Ford Traction-Lok in mine for about $250 total. Didn't have to mess with setting lash, it was a Ford for Ford carrier swap. Same manufacturing specs. A possibility, for whatever you're trying to do.

 

It's not from an F250, and you missed the "3" in the dirt near the bolt head. Click this & read the caption:


(phone app link)