Manual Locking hub Question

I have just ordered and received a set of Warn manual locking hubs, and they will not fit my 1996 Geo Tracker Hard Top four door. When I go to gowarn.com it gives the part number that i received. Was there a change? has anyone ran into this before. Is there another hub that will fit. It looks the same on the inside gears and mechanisms. IT has a 6 bolt pattern that is TOO BIG. Please help I ordered these thru NAPA so they don't even know what's going on.