Dumbest Question Ever?

[KCX5]

I cant get the wheels off my X5 to put my snows on. All lugs off and it wont move. I put block of wood on the inside of the wheel and beat the block w/ my small is sledge hammer - think its 4lbs. I slowly let the X back down, putting its weight on the wheel w/o lugs w/ my big craftsman jack and no dice. Had this happen w/ my M3 before but usually the sledge hammer & block trick work. My only thought is to spray something at the hub and or get a bigger sledge hammer and block. Wheels were off about 4 mos ago at dealer when it got its last free brake and coolant flushes.

Its an 01 X5 4.4 w/ 46k.

Thanks,
Chuck