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Hello! I was hoping someone could help me decode the stamping marks on my differential. It's been painted over, and the original metal tag (if there was one) is gone, so this is all I have:

I THINK this is what they say, feel free to correct!

DIF 41
4868A
C5??
3417

Here are the links to some pics if they help too:

http://i1255.photobucket.com/albums/hh621/Sarah_Rockel/IMG_20121003_205315_zps6460eb57.jpg

http://i1255.photobucket.com/albums/hh621/Sarah_Rockel/IMG_20121003_205222_zps4ccee0bd.jpg

http://i1255.photobucket.com/albums/hh621/Sarah_Rockel/IMG_20121003_205325_zpse0946760.jpg

Thanks for any help you can offer me! Just bought the car and trying to figure out what everything is :sweat:
 

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Those are Casting Numbers & Dates. They wont tell you the gear ratio.
It looks like a 9" inch Ford to me.
For ratio Info, you'll have to count the Pinion & Ring gear teeth & divide Ring by Pinion teeth #.
Can also rotate the tires 1 revolution & count the Driveshaft revolutions if Posi Diff. If Open Diff rotate 1 tire 2 revolutions & count DS revs.
Tag codes >> Ford Rear Axle Assembly Identification - Page 01 - FORDification.com
Other IDs >> http://www.maliburacing.com/ford_9_inch/ford_nine_inch.htm
 
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