Ok, so I bought an sr5 gauge cluster, and swapped it out along with the oil pressure sending unit. I swapped both before I turned the key on. When I went and cranked the truck the oil pressure gauge never moved. It was on about the 3/4 mark and has never moved. How can I tell if it's the sending unit or the gauge? I'm assuming that its probably the gauge, since the sender is new. Anyone know where I can get an oil press gauge? or a way to test them?

Thanks
Trey
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