I have a 99 Dodge Dakota, 4wd, 4wabs, w/ 5.2L, 5spd... Is there two different size hubs made for this truck?

I picked up a pr. off ebay, that said they were for a 99+ 4wd/abs Dakota. But everthing is smaller on the new ones! The 3 bolts on the back are smaller, the lug pattern is smaller and the splined center is smaller... What did they send me? What did I order??

ANY help would be greatly appreciated...

Thanks,
-AL-

 

part#? cross refference it