alright '89 f250 5.8 5 speed 4x4. the door sticker says 8600 gvw, if im reading everything right that makes it an HD, the rear axle is a full floter, has the hub sticking out in center, sterling 10.25 right? but the cover only has 10 bolts, dana 60 ? the tag on the rear axle reads 4 10 E2TA AEA
605040-3 LS
thanks for any help.

 

What's the axle code on the drivers door pillar decal?

 

The 10.25"s fill plug is on the front of the diff, on the drivers side.

 

the axle code is 39