Also, if it helps, my oscillator box has the letters U.P on the side where the connector plugs in and 2101 on the bottom. The back of the clock assembly has 2111 F. I think I need a new oscillator box, tried connecting it once as recommended by the Z Clock repair guy, but the clock didn't start up. Still looks cool, if I have to have an inoperable clock I prefer my lap counter w/ the separate box over the clock the car came with that doesn't work. However, I'd prefer the rally clock to work of course if I could get a working box. Edit: Put me down for number 3 clock and box since it took me so long to post