Hey I have the rally pack on my 64.5 and the clock does not work, and the tach does not work all the time. Someone had told me awhile back there is a place you can send it into to get worked on, but never got the address or name. Or is there a kit or diagrams to fix it yourself?
Had Gary at H+H auto do a complete restore of my 65 Rally Pac two years ago. He repaired the tach (worked only when it felt like it) did a quartz conversion on the clock, repaired the harness and painted the housing for around $400 complete. He does really nice work but be prepared to wait for a while to get it back, as he usually has a pretty good backlog of stuff to fix. There is also a guy called the clockdoc who does restoration work but I am not familier with his work or prices. www.tachman.com