Remove kick panels, A pillar molds... need to remove top inner windshield mold, side headliner molds and door sill plates to make this easier.
-Unplug any body to dash related item:
Antenna cable
AC vacuum lines ( there is a multiport plug around brake pedal brackets )
Hazzard flasher and brake light switch wires around brake pedal brackets
AC-heater resistor plug at box
Vacuum line coming from engine bay ( there is a check valve you can unplugg )
Heater wire coming from engine bay at heater control
Passenger side door jam switch
If console, orange wire at pasenger kick area
If 74, interlock sensors harness at passenger kick area
Driver side door jam switch wires
Remove floor dimmer switch plug from floor ( 2 1/4" hex heads screws )
Unplug rear lighting harness, dome light harness, emergency brake wire ( rear deffog, powered window harness and speakers if equipped ) and seat/seatbelt sensors harness if 72/73 on driver side kick area
Release wiring from driver side kick area wiring body looms.
Loose bulkhead/fuseblock assembly from firewall ( two 7/16 nuts on engine bay side )
Any other acc wiring going through firewall with grommet if equipped ( AC harness if 74, tach wire if equipped )
If cruise control, harness can keep on car, just unplugg it from the main harness ( blue and black wires around )
Speedo cable from cluster.
Unplug ign switch, turning switch, ign key courtesy light switch if equipped.
Drop steering column. 2 7/16" hex head nuts and one bolt same size on bracket. Just the 2 nuts if 74.
If 71/73, there are two 1/2" bolts on steering column bracket at firewall bracket what removing them will give you more play with steering column to let it drop. 74s don't need that since they play more free.
Speaker grill: 3 phillip screws and 4 1/4" hex head around windshield vents. Keep them safe to not drop them throught the windshield vents!
4 3/8" hex heads close to the glass on top of firewall to dash frame
Two 7/16" hex bolts on sides of dash frame at kick panel area. DON'T remove them just get them loose. Those bolts will help you on keep the weight safe on them
Be sure you don't have ANYTHING able to keep hooked to the body down the dash frame while removing
Lift the full frame dash assembly a bit to release it from the top of firewall provisions and let it drop to you, then will be ble to pull out the full assembly. Watch out the steering column brackets studs, they will remain on car and can disturb a bit the process. It can be removed though!
I have being able to do it with seats and console in place, but if you want can remove them if you feel more comfortable doing it... honestly I don't think is necesary
No need two persons to remove it, but WAY better to be sure won't get any wire accidentally being hooked around while pulling it out. Also playing as assistant to get it out through the door access.
Easier through the passenger side door due the steering column will be in the middle if doing it at driver side
I think that sums pretty much all