Trying to change the front gaskit and the pulley will not come out

If your talking about the crankshaft pulley, you will need whats called a hamonic balancer puller. They are available at most auto parts stores and also places like Harbor Freight tools. It will have a "bracket" that you screw an included bolt into the center and then using the included bolts, bolt it onto the pulley. then you just screw the large bolt into the center of the crankshaft and it forces the pulley off. When it's time to put the pulley back on, You can use a block of wood and hit the pulley IN THE CENTER PORTION to get it back on the crankshaft. Remember to apply the proper torque to the pulley bolt or it might come loose.

The big pulley on bottom ( balancer pulley). if this is what your talking about you need a puller tool that can be rented from your parts store.