i was thinking this would be a good project for me to take on as its not that complicated. so the thinking behind this is that since i might be test-towing loads soon this year, and there is a mountain pass called the Coquihalla that has a long coolant boiling 4000ft uphill run with no flat spots to give the motor a break. the pass is similar to what one would find in Pennsylvania, Washington, Montana, Oregon, California, etc.. so i have had the pleasure of towing too much weight with a 4cylinder car and blowing the transmission, and typically there are warning signs before this happens, namely the transmission fluid overheating and breaking down. a buddy of mine said that his company actually installs an extra tiny radiator on the transmission oil, neat idea but i don't want to go that far. but after seeing those pics of sflindalls car with those three gauges right on that windshield panel where there is room and nothing is there.. so i was thinking if i wanted three additional guages what would i want - well manifold ambient pressure, transmission oil temperature and oil temperature probably - the scan guage has 4 spots on it so i use that for mpg, coolant temperature, voltage, and engine load