changing light bulbs
I changed all the bulbs in mine this year (now I can actually see them at night :D) and I found it easier to pull the instrument cluster to do it. The only PITA in the job (for me, anyways) was plugging the wiper switch back in.
btw, the speedo's probably the same as my '73, so there are two bulbs that (sort of lol) light up the speedo- one high up on each side