No, voltage regulators are matched to the generator, because of output current. You can use a regulator made for a higher-output generator on one of lower output as long as you adjust the regulator properly. Also, alternator and generator regulators are not the same. I don't remember the specific settings for your truck, but something around 35 amps and 14.2 volts was almost a standard setting for those vehicles. Your 1-ton might have a larger generator on it, but if you don't have it loaded up with electrical accessories and lights, the 35 amps probably is enough for your setup.

Harvester