The AC Delco switch I listed above has a 1/8" pipe thread and works with the stovebolt oil pressure port and a T fitting. That's about as simple as it gets- - - -pressure gauge, oil filter and switch all on one port, using two T fittings. The best T fitting will have one male thread and two female openings. Any FLAPS with a good brass fitting assortment should have them in stock.

http://www.amazon.com/MettleAir-107-A-1PK-Street-Fitting-Female/dp/B0081S14NU

Jerry



"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!