Thanks for paint color advice. Now, I'm trying to figure out best ways to clean, and more importantly, lubricate various internal speedo parts. Really don't want to go to the speedo repair shop with this, unless I absolutely have no choice.

It's pretty easy to see remnants of grease on various pieces, I was thinking of relubing these particular areas with either white lithium or wheel bearing grease. I'll try to eventually get a pic posted to show exact areas/ parts I'm talking about.

The odometer and trip odometer assembly is different story, there is no way I'm going to take those apart and have all the little numbered discs, washers, etc... possibly breaking or go flying out of my hands, to be lost forever....

I took my junk speedo apart and sprayed PB blaster all over the odometer and trip odometer assemblies, cleaned up nicely, but I'm not sure I want to do that with the actual assemblies I end up using. Concern is that using the wrong lubrication may only work temporarily, and also harm the tiny plastic gears in these mechanisms, and lead to failure.

Read on internet how somebody washed their entire odometer assembly in water/ dish soap, dried off completely, and lubricated with machine oil. Not sure if thats the proper way to go either.

Going to hook up my 2 extra speedos to cable in car next week, and see how far off the odometer readings/ speed is on them. If it's way off, might end up taking speedo to speedometer service shop after all for the cleaning, lubrication, and calibrating. If readings aren't that far off, I sure would like to try and clean/ lube myself and save 6 weeks time and $100++ Any advice would be appreciated.