Hey everyone, I'm posting on behalf of my fathers truck. Just recently his oil pressure gauge pegged at 80 psi. The truck runs fine, no weird noises/smells, so I'm 99% certain it's either the stepper motor or the stock sending unit. Now to fix his problem, I figured I could just buy a mechanical oil pressure gauge and use that, and not worry about replacing the sending unit or fixing the gauge (both are kind of pricey). I called two auto repair shops, and both places said "just replace the sending unit and be done with it." BUT, I don't to replace that, if it's a gauge cluster issue. I would just end up throwing away money. So I'm set on just running a mechanical gauge. Only one question, where would I thread the gauge in at to read oil pressure? Would I thread it in where the stock sending unit is, or is there another area to thread it in so that I can keep the sending unit in?