wow awesome www. site (RT-Eng.) !!!
After reading that I think I can fix my tach and my clock 
Just curious: How difficult is it to remove and reinstall the Rally cluster in a '70 Chally?
After reviewing the website that sounds like it's the hard part 
Thanks.
I guess it's like most things in that it is only difficult the first time you do it. First off, disconnect the battery. Use a jewelers screwdriver to remove the small screws from the 2 reset knobs. Use a 3/8" deep socket to loosen the front 2 nuts on the bracket supporting the steering column underneath. This will allow you to drop the coulumn a couple of inches for clearance. Next, take the screws out of the light panel, and flip it back on to your dashpad. Now the fun begins(serious sarcasm). Remove all the screws from both the switch panel, and gauge panel. You can use a large flat blade screwdriver to message the switch panel out from the dash first. Once it is free and left hanging there, you can try your luck with the gauge cover. Once you get the gauge cover off, you will see the screws that hold the gauge pod to the dash frame. As you pull the gauge pod out, you will see you have to pull out the turn signal, brake, and high-beam lights. Then disconnect(unclip), the speedo cable. Disconnect the power wires from the tach, clock, and voltage limiter. Then it's onto removing the signal wires for the gas, temp, and oil pressure gauges. Last but not least, unscrew the thick wires going to your amp meter.
Mike
