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Dash

From 1997 Chevrolet Silverado 3500 “BigGoldDuallie SOLD”, documented by Steve83.

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1997 Chevrolet Silverado 3500 - Among other electrical mods, I'd like to have an in-dash USB power socket. So I'm adding a fuse to the stock dash fuse box by installing a… 1997 Chevrolet Silverado 3500 - The buss bar that feeds position 23 is key-switched, which is what I need. So I've added a bottom terminal to that position for my mods. SE… 1997 Chevrolet Silverado 3500 - The fuse block is fairly easy to access: pull one 7mm screw, slide the box in & down, and rotate for access to the blue retainer bar (other… 1997 Chevrolet Silverado 3500 - I took apart a cigar socket USB adapter & found the guts fit here perfectly. So I soldered some wires on, but I haven't found the switch I… 1997 Chevrolet Silverado 3500 - I scavenged some plastic from a junkyard dash & used it to make a mounting plate, then screwed it to the dash shell. The back of the socket… 1997 Chevrolet Silverado 3500 - After checking the position with a pilot hole, and then dremeling the rough size/shape, I finished the opening with a flat file to get the… 1997 Chevrolet Silverado 3500 - This is a RadioShack 6A SPDT center-off switch, and it now controls the USB power. Up for battery (constant); down for switched (key). It c… 1997 Chevrolet Silverado 3500 - I chopped a PCM connector from a gasser, and pulled all the terminals out as pigtails. I've already started the dash harness, so I'll use a… 1997 Chevrolet Silverado 3500 - I had this old rotary DP4T switch in my junkpile, and it's perfect for this application. The 2 poles will feed the 2 PCM inputs; the 4 thro… 1997 Chevrolet Silverado 3500 - The LtGreen ground wire is soldered to both poles (center). The Pk wire is soldered to the 2nd & 4th throws; the DG to the 3rd & 4th. So th… 1997 Chevrolet Silverado 3500 - The Pk & DG wires are routed with some others that I'm installing at the same time, then under the cupholder, into the dash, and behind the… 1997 Chevrolet Silverado 3500 - It's pretty easy to fish the wires through. 1997 Chevrolet Silverado 3500 - The PCM slides out & rotates for access. The target is the top row of the 2nd brown connector. I took this pic after I was finished, but yo… 1997 Chevrolet Silverado 3500 - Release the 2 catches on the blue retainer, and slide it out. I took this pic after I was finished, but you can still see what's involved. 1997 Chevrolet Silverado 3500 - I simply pushed the new pigtail terminals into the connector - I never removed the connector from the PCM, or the PCM from the dash. The fa… 1997 Chevrolet Silverado 3500 - I cut a scrap of sheet metal (I think from an old PC power supply) to be my mounting plate, and screwed it to the dash. Then I temporarily… 1997 Chevrolet Silverado 3500 - With the bezel back on, I confirmed that the shaft is centered in the opening. It's POSSIBLE that this switch is equivalent, but I haven't… 1997 Chevrolet Silverado 3500 - The knob I found requires a fairly large hole (nearly the size of the plastic plate), but it's about the same size as the factory gray knob… 1997 Chevrolet Silverado 3500 - I'm not sure this is the knob that will stay here, but it works & looks OK. The hole for the knob only affects the (previously UNused) smal… 1997 Chevrolet Silverado 3500 - This is how it looks with the high-idle switch & USB power jacks installed - nearly stock. Eventually, I hope to find a matching grey knob.… 1997 Chevrolet Silverado 3500 - I finally found a gray knob in the JY and installed it. It's 180° out from the previous knob, so I need to rotate the switch to make it mor… 1997 Chevrolet Silverado 3500 - I got another switch panel, re-drilled the hole in it offcenter, moved the switch mounting plate in the dash, and rotated the switch so the… 1997 Chevrolet Silverado 3500 - I found the Brother P-Touch 2430-PC with white-on-clear high-strength adhesive tape produces near-perfect labels. Since it's only a PC-base… 1997 Chevrolet Silverado 3500 - The high idle switch is now labeled in a font very similar to the rest of the dash. Regardless of this switch, the high idle is DISabled if… 1997 Chevrolet Silverado 3500 - I plan to do the popular All-On high-beam mod, and these are the 4 common ways to do it. My truck doesn't have factory fog lights. IF THE I… 1997 Chevrolet Silverado 3500 - I've decided to use the simple shunt with a switch for my all-on headlight mod. My first step was to ID the wires in the column connectors.… 1997 Chevrolet Silverado 3500 - The wires on the column side of the connector don't match the diagram, OR the dash side. But I'm not splicing into these anyway. [url=http:… 1997 Chevrolet Silverado 3500 - I pulled the blue terminal lock & the white contact shield, and removed the 2 terminals. I tinned the crimp & then soldered a wire to each.… 1997 Chevrolet Silverado 3500 - The blue terminal lock had to be cut away for the new wires, but it works. The wire was long enough for me to stand in front of the truck &… 1997 Chevrolet Silverado 3500 - I also spliced onto the Park Lamp circuit for the front bumper lights. 1997 Chevrolet Silverado 3500 - These are just some switches I found in my junkpile - I'm still looking for one or 2 that I like. But these work the way I want: the all-on… 1997 Chevrolet Silverado 3500 - To add a mechanical boost gauge, I drilled & tapped the intake plenum for a compression elbow (NAPA 69x2 ~$3). Teflon tape is taboo, but I… 1997 Chevrolet Silverado 3500 - To add a mechanical boost gauge, I drilled & tapped the intake plenum for a compression elbow (NAPA 69x2 ~$3). 1997 Chevrolet Silverado 3500 - The boost gauge tube goes through the same previously-unused grommet with the fog light wire (white), and the cables for the power inverter… 1997 Chevrolet Silverado 3500 - I'm not sure the boost gauge will stay there, so the extra hose is coiled under the dash, and I haven't installed the backlighting yet. But… 1997 Chevrolet Silverado 3500 - I recently noticed that the hazard switch wouldn't pop up, and that pressing it down caused a minor short circuit (no damage). So after sho… 1997 Chevrolet Silverado 3500 - The only writeup I could find said that it was necessary to remove the airbag, knee bolster, & ignition lock cylinder, but I didn't see the… 1997 Chevrolet Silverado 3500 - From below the dash, most of the column wiring goes to the big block just L of center at the top. The inner 2 rows of wires are for the ign… 1997 Chevrolet Silverado 3500 - I used this long right-angle pick to release the block from the flimsy frame, then pulled the block down enough to back out the red 7mm bol… 1997 Chevrolet Silverado 3500 - Up here, I pulled the cluster bezel off (releasing the cargo lamp switch plate, headlight switch connector, & other switches) to make room… 1997 Chevrolet Silverado 3500 - With just a little finageling, the big connectors came out of the dash. This might be 20 minutes of work, but I took longer because I was l… 1997 Chevrolet Silverado 3500 - The new switch went right back in, and I reconnected it for testing before finishing the installation up here. It worked fine, so I put the… 1997 Chevrolet Silverado 3500 - I used the pick again to set the shifter boot back onto the column shroud as I put the lower shroud into place. I put some red threadlocker… 1997 Chevrolet Silverado 3500 - This is as much mess as I made. It was a very quick, easy, clean job. The solar panel in the door pocket goes on the dash when I leave the… 1997 Chevrolet Silverado 3500 - These are all the tools I used: - cordless impact (1/4" hex) - long T25 bit - short T25 bit - offset ratcheting screwdriver - 1/4" square s… 1997 Chevrolet Silverado 3500 - Works & looks just like it should now.