This is an old thread I know, but I'm still using the old VDO multigauges too, vintage ('96). I've heard of Lauderdale Speedo in the past (my dad is a boat guy in Stuart, FL), but I was looking for confirmation they can re-do these. My port volt meter is squirrely (have to whack the gauge to get it to read right) and now the fuel gauge is jumpy on the starboard side. Checked all connections. Good to know they can handle these. I just don't want to spend a lot of time and tech hassle to modernize and have to replace oil, fuel, temp and volt sending units and maybe re-cable everything with new connectors. The current gauges worked for nearly 30 years so I only need another 25 and I'm out.
Anyway, thanks for this thread, short as it is. Very helpful. I'll pull them and mail them off when they pull the boat.