Remember Fellas, take care when pulling/pushing out the Oil Temp/Druck Gauge, the Alt light wiring is very short and it will pull out so make certain it is put back into the housing when you swap.
Per Bentley, pull the clock out first then swap the bulbs, leave if off for now then reach in thru the hole to help the Spedo out from behind, swap leave it out and go to the Fuel/Oil Level pull and swap leave it out then reach in and push the Temp/Druck gauge from behind being mindfull of the alt and oil light wirings swap and leave out. Now the TACH, reach in on a open and as you push from behind lift up on the underside of the dash to make a bit more room for the Tach to pop out and the when out slide it to the side to clear the Steering wheel rubber dust shield. I found this to be the best way to remove and reinstall the TACH.
Slide the seat all the way back and start putting everything back. I found sliding the seat back helps in lining up the gauges.
Hope this helps, Happy New Year.
Jim
NOTE: for safety, DISCONNECT the Battery, the clock is always HOT