Product review (5 stars): Great replacement
For less than the price of a service call, I got a new motor and belt for my old Maytag dryer.  Like the other reviews mentioned, the wiring is a little different, but the motor includes instructions on how to hook it up.  Two wires need the ends cut off and crimped to new smaller spade connectors.

You'll needs some tools to do the motor swap- phillips screwdriver, big regular screwdriver to get the the motor clips off, an allen wrench to remove the motor pulley and put on the new motor, 1/4 and 5/16" sockets, small snap ring pliers to remove the snap rings on either side of the blower fan, and pliers to get the spring clamp off the fan.  Oh, and the wire strippers to put the crimp connectors on.

One thing I learned was that the motor can be installed without pulling the dryer out of position- you can do it all from the front.  Search youtube, there was a nice video showing how to do it.