looking to put a tach in my 1953 customline I found some that will fit where the clock is ... 2 1/6in but they are all 12 volts ... I need one that will work on 6 volts any ideals on how I can do this?
Don't think that will work, its meant to reduce 12 to 6, he's already at 6. You're going to have to search for a 6 volt tach or a mechanical tach. They're out there search online.
granted im 12 volts but I just did this swap. I put in an electric 2 1/16 tach where the clock went. I used the clock bezel and housing and it works great. I had to use the original clock bezel because the hole in the dash is more like 2 1/8 and the tach I bought would fall right through the hole.
Just about the only 6 volt source available is here:http://www.westach.com/products/SINGLE/2 INCH/TACHOMETERS/index.php Switching to 12 volts should be in your plans at some point,just looking at a cost and availability factor.