Help with instrument panel

[afdcaptain]

I have a 71 chevy truck, i have a instrument panel with oil pressure gauges and such that i purchased. my truck currently only has speed and fuel gauge. Do i have to run wires for the other gauges or are they already there anf just need plugged in?

[jocko]

Welcome captain. Here's some info:

Wiring diagrams: http://67-72chevytrucks.com/vboard/s...d.php?t=738404

Idiot light to gauge conversion threads:
http://67-72chevytrucks.com/vboard/s...d.php?t=295681 (this one is very helpful)

http://67-72chevytrucks.com/vboard/s...d.php?t=645940

http://67-72chevytrucks.com/vboard/s...d.php?t=598240

http://67-72chevytrucks.com/vboard/s...d.php?t=592617

If you notice the little "Google" box in the upper right part of your screen, you can find much of what you're looking for with a quick keyword search. Make sure to click the "67-72chevytrucks.com" radio button before you click the "Google" button so your search results only come from the site rather than the whole interweb.

[El Dorado Jim]

on our old trucks there is a 1/8" steel tube that runs from the engine block,right next to the distributor, through the firewall and screws onto the back of the oil gauge on your new dash....you have to remove the plug on your engine block, and screw the brass fitting in there then hook up the tubing...if i were you , I would try and get the fitting and tube from a wrecking yard, the one from a 70's square body truck will work also,i think it was late 70's when gm changed to an electric oil sender and gauge,which will be of no use to you....if you cant find one, I may have one I could send you....

[LockDoc]

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If you can't find an oil pressure line I make them up with all of the correct fittings, including the block fitting.

http://67-72chevytrucks.com/vboard/s...d.php?t=613373

I also posted a thread with the tube bending measurements listed on the pictures.

http://67-72chevytrucks.com/vboard/s...d.php?t=613238

LockDoc

[afdcaptain]

i understand about the oil pressure gauge but what about the water temp, volts,and tack. will i have to change the wiring harness.

[LockDoc]

Originally Posted by afdcaptain

i understand about the oil pressure gauge but what about the water temp, volts,and tack. will i have to change the wiring harness.

Read the bottom 4 links Jocko posted. They should explain everything. Member Tbone1964 is very knowledgeable about the conversion and his thread is included in those..

LockDoc