heater box removal

little guidance here is needed. i am going to take out the heater box and change the core. there are 3 bolts holding the elect fan onto a large donut gasket under the hood. also in at least 3 places, 1 next, left to blower motor, see pic, one up toward the AC hoses, and one over behind the distributor.Q. which are the bolts to take out. the heater blower seems to only take loose the heater blower motor. now ill try to post the pic> stand by>>>....

heater blower motor.jpg