Join Date: Nov 2008
Location: Madison, WI
Feedback Score: 1 reviews
There's a write-up somewhere on one of the forum sites, showing how to make the gauge a real gauge. You solder in (or perhaps remove?) a resistor on the back of the gauge head, and then I think you also install a different sender, one that's an actual variable resistor rather than just a "switch".
If you go aftermarket, I would NOT recommend a mechanical gauge. That requires a capillary tube containing oil to be run through the firewall and into the gauge head. If that tube fails, not only would it be a fast oil leak, it would be, er, not a pretty sight inside the cab. There are electrical aftermarket gauges, with a variable resistor sending unit.