BillyBob,
By right side, you mean the wood?
The tachometer is a little tricky, and there are two primary methods, best described by searching the forum under removing tach, or dash instrument removal. Basically, you have to come up from underneath, and put your hand up behind it, unscrew the knurled nut that holds the bracket, unscrew the tach cable and then you can pull/push it out of the dash. You'll probably have to take out the middle instrument cluster to get to the speedo, to get to the blue nuts that hold the left wood piece. Putting them back is a BI*CH. There is a sequential process. While you are at it, make sure you replace bulbs, instrument gaskets, and cables. And you may want to do an LED bulb upgrade if you are sick of dim lighting. All this is listed in prior posts. You just need to do a little searching with the search field.
Thanks for being a full member.
Mike Mizesko