: Aftermarket Gauges

01-02-11, 01:16 PM
Hey Guys,

Since I am hopefully getting my 307 problems squared away in a couple weeks, I thought it would be a good idea to install a set of gauges. My idea was to use small (1 1/2" gauges) to the left of the steering wheel in the flat section, which seems to be hollow in back.

Two questions: What is the best way to route the wires/tubes through the firewall? Does anybody have any other suggestions?

I am going to try to go with some chrome-rimmed, inexpensive gauges for now. The most important thing for me is to monitor coolant temp and oil pressure. Idiot lights are such a bad idea!

01-02-11, 05:14 PM
Right under the master cylinder is a rubber grommet with a large vacuum hose coming through it. You can pull the grommet out a little and route wires into the cabin through the hole. The hole comes into the cabin at the top of the emergency brake, near the fuse panel; you might need to move the sound insulation to see it.

If you want some cheap digital gauges that will match color of the radio and ECC, I recommend Cyberdyne Gauges (http://www.cyberdynegauges.net/). I recently installed a digital coolant gauge in my Brougham; I put in that dead square on the right side of the ECC. Follow this link (http://www.cadillacforums.com/forums/rwd-19xx-1984-deville-fleetwood-1985/203968-dead-space-solution.html)to the thread where I have the steps I took to install that gauge and the pictures of how and where to rout the wires through the fire wall.