where are we tapping into the engine for oil pressure readings for a mechanical oil pressure gauge?

where are we tapping into to get coolant temp readings for a similar mechanical gauge?

'93 w150, magnum 318


I'm having some low oil pressure issues, but at only 70kmi, i doubt the engine is worn, and i am leaning towards a bad electric sender.

Thanks in advance.

 

If you want to keep the stock oil pressure gauge too use a tee fitting into the block. Don't know about the temp. gauge.

 

so the only place to tap for oil pressure is where the factory sender is? i really dont cre if the factory one works or not.

any other ideas on the coolant temp probe?