Thanks Jon, that's what I needed.

The temp switch is an over the counter item and said to be capable of 20 amps without a relay. I put the relay in just cause I tend to overwire stuff and I don't care for the standard little plastic relays. It is part number ST85 at NAPA.

I forgot to answer the muffler question earlier. It's not very loud and it sounds pretty good. The turbo sounds really nice too.

I am not going to put a muffler on when I do the exhaust. I think with the bends it will have in it going back across to the drivers side and back it will be about right. If not, I can always put a muffler on later. I like my stuff a little loud as long as it's behind me and not too noisy in the cab.

I did a little more testing with the glow plugs and am almost certain that this engine has 12 volt plugs and that is what is causing the problem. I am going to pop the plugs out and see if the C223 style 6 volt plugs will interchange as I have a brand new set I could put in it. If not, a hidden momentary switch under the dash will do for just in case. I don't like cluttering up the dash with switches and with two cold starts in the mid 30's, it fired right off without them.