amigo - the ignition resistor required for a coil has nothing to do with the dropping resistor required for using a 6volt gauge on 12volts, so yes, you still need that as Jim sez

Chester, I think GMC was a year behind Chev and used 6volt in 55, 12volt in 56

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics