You might also consider a Runtz for a voltage reducer. It is the only solid stave one available that mounts on the back of the gas gauge and is just 1/2 inch by inch. It makes for a much more reliable gas gauge readings and stops the nervous needle syndrome. By conrast the ceramic type of voltage reducers typically have a 40 percent error rate and to a gas gauge that runs on just a quarter of an amp...thats a lot.
Randy