I'm preparing to change the diff fluid, and possibly the rear diff cover, if the current one doesn't clean up as good as I'd like. I'm having issues clearly identifying the rear axle.

Door Sticker


Differential cover


Differential tag


According to Differential Identification | West Coast Differentials , it's either a Ford with 4.10 or a Dana 60 with 3.33

According to what I can make out on the tag, and by my counting revolutions, it's a 4.10.

The Dana 60 has a bung hole in the cover, and this clearly doesn't have that. I haven't looked up top yet, but I'm assuming there's a fill hole there, instead? If so, how much do I pour in?

Since I'm getting ready to pop the cover, I'd like to have the proper gasket for it. Can someone help me identify this thing???

 

Nevermind...found the answer here. Ford Rear Axle Assembly Identification - Page 10 - FORDification.com

S110C Ford F250 Pickup '88-'95 4.10 10.25 NL

 

sterling 10.25 axle. the dana 60 was not used in the rear of trucks after 85 if i remember correctly