PJ-
I just recently installed one of these kits on one of my Mogs. My Mogs are both 24V, and the kit I got is certainly for a 24V setup. In the kit there was the gauge, a new sender to screw into the block, and some wire and connectors. No resistors/diodes. Give Scott a ring, I'm sure you can get it sorted out quickly. I'm assuming the VDO gauge that I got is 24V, it works perfectly in my 24V system. If you got a 12V gauge for some reason, you would obviously need a resistor to drop the voltage. Perhaps some of the kits come with 24V gauges, other with 12V gauges? Is there a voltage indicated on the back of the gauge you got? How about a part number...you might be able to use the part number to see which gauge you have. Or maybe, you just got a free part!
I just recently installed one of these kits on one of my Mogs. My Mogs are both 24V, and the kit I got is certainly for a 24V setup. In the kit there was the gauge, a new sender to screw into the block, and some wire and connectors. No resistors/diodes. Give Scott a ring, I'm sure you can get it sorted out quickly. I'm assuming the VDO gauge that I got is 24V, it works perfectly in my 24V system. If you got a 12V gauge for some reason, you would obviously need a resistor to drop the voltage. Perhaps some of the kits come with 24V gauges, other with 12V gauges? Is there a voltage indicated on the back of the gauge you got? How about a part number...you might be able to use the part number to see which gauge you have. Or maybe, you just got a free part!