Steps I took when I removed the old dash in my 89 were:
Disconnect the wiring harness under the hood and work the connector back into the interior.
Starting on the Drivers side, I removed the panel below the Steering column, The metal bracing panel behind it(keep it handy, as you will put it back on before you remove the dash as it keeps the dash from flexing and cracking), Disconnect the wiring to the steering column and remove the column. Disconnect the wiring to the brake and clutch (if it has one) at this time also
I removed the finishing panels(drivers vent panel, Guage surround, and the Instrument panel itself), the two panels on the top part of the dash to reveal the 4 bolts at the top, the center console(top and bottom), center vent panel which reveals the two center nuts, and lowered the glove box door so I could disconnect the fan blower. I also removed the A-pillar panels, and both kick panels (on the passenger side you disconnect the connectors for the stereo system, the antenna harness).
Once all the wires were disconnected I removed the center nuts, the two bolts on the passenger side, the two bolts on the drivers side, the nut hidden on the drivers side thats accessable through a lower opening and on the dead foot pedal bracing bracket. Its there you just have to find it, lol.
I then put that brace thats under the steering colomn back on and the I removed the 4 top bolts and CAREFULLY began to pull the dash from the cowl. There may be some other wires to disconnect but I think I covered them
Hopefully you will have someone to help you because the dash is quite awkward to remove. Careful around the shifter as it can be a pain. Once I got the dash off the cowl I rolled it towards the back once I cleared the two center guide pins where you removed the two nuts. You can let the dash rest on the seats. I think the easiest way to come out is through the drivers side.
Anyways thats how I removed mine and hope you find this some help.