[smokedchevy]

What does it say you need a T fitting for? Usually T fittings are for vacuum gauges. I only have mechanical gauges on my ride. If I remember right, you have two senders. One for the water and one for the oil. The water temp sender should be able to screw right into the lower intake(with teflon tape). The oil sender can be located on the side of the block by the oil filter. On the back of the gauges it should be marked with I, S, GND. I should go to ignition switch, S goes to sender, and GND goes to ground. That's all it should need. Same goes for the oil pressure sender. Hope that helps.