As said above only the speedo and clock needles come off in a b body rally dash. The other needles are not removable, and they are very fragile.

I am in the process of doing mine now. What i did for the smaller gauges is grind the two rivets down so I could remove the gauge face and paint. The gauges have a lip, and I couldn't figure out a good way to cover the needle while painting the face. With the fces off you will see how fragile the whole assembly is.