For the trans temp, can't you splice into the line going to the trans cooler? Go to your local hardware store, in the brass fittings section, and buy the appropriate "T" fitting, and two barb fittings. Splice the line going TO the cooler and slide each end over the barb fitting and place the probe into the T. Could probably do the same if there is an external oil cooler (sorry, new to Hummer's, but this is what I've done in the past for race cars).
Colby
|