Converting '68 120 mph Rallye Speedo to 150 mph

I don't think you understand. He's going to re silk screen my 120 mph core speedo to the 150 mph unit that's all rebuilt and re magnetized internally to be adjusted to work correctly. It just won't have the trip meter, but it's lots cheaper than an original that needs restored.

www.redlinegaugeworks.com will do this same conversion. He can also convert your amps to volts. And convert your temp gauge to show actual numbers in original type script with a calibrated temp sender (new replacements have the wrong resistance).