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Painless Performance Wiring Harness Install - Project Get Shorty Wired Science - TechFrom the September, 2010 issue of Custom Classic Trucks By Dakota Wentz
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When I was 16 years old I set out to build the ultimate stereo for my ride, within my budget that is, which was inauspiciously diminutive. (This is my way of dancing around "unfortunately small!") The only thing I knew about wiring was hot wires and ground wires, and ya need a switch to turn things on. With more gall than brains I gathered all the components: receiver, subwoofer, amps, wires, and the like. Eventually I got it hooked up. From there I decided the inside of my ride needed to light up like a late-night Amsterdam discotheque. By tapping into circuits such as the dome light, power seats, and cigarette lighter I wired in strobe and black lights. It was my crowning achievement in wiring-when it worked that is. Most of the time I overloaded circuits, blew fuses, and melted wires together, but nonetheless I did it! Long story short, wiring is something anyone can accomplish so long as you set out to do it. The prelude before was the leeway into the next bit in the Project Get Shorty series: wiring. The time has come to provide fire to all those components wasting away in hibernation. Unfortunately, the mere thought of wiring one's truck evokes images of Clark Griswold's Christmas lights to many. Now granted, things are intimidating when you're staring down 100 loose wires! But the truth is, if ya take things on a wire-to-wire basis it's a pretty simple procedure. After all, each item needs battery feed, ground, and a switch to interrupt the circuit. It's that cut-and-dry. Coiled up like a rattlesnake... Coiled up like a rattlesnake it doesn't look like there is much there, but everything needed to wire Get Shorty is accounted for, including the chassis harness, starter, terminal fittings, remote kill switch, battery cables, and electric fan harness. When it comes to wiring, Painless Performance is no stranger in the hot rod world. Painless is in the business of providing all the wiring essentials needed to get your truck on the road. In the world of classic trucks they manufacture stock replacement harnesses-with all the correct plugs predetermined-for just about every application out there. For those with custom needs they also manufacture universal truck kits that can satisfy the most basic wiring needs, or 18-circuit systems that will wire everything including the kitchen fridge! For Get Shorty we went with an 18-circuit '67-72 GM Truck Chassis Wiring Harness. This factory replacement harness will run every component thrown into Get Shorty, and more to be truthful, but what really sold us is the wire lengths are pre-cut and everything has a correct plug-and-play fitting to make the install a breeze. However, not all of Get Shorty's equipment is OEM. Therefore we had to dissect the wiring harness at times, but this too is a cinch when using a Painless kit, as you'll see. The harness covers every need of a fully loaded C10, plus it's outfitted to accommodate new technologies such as power antennas, electric fuel pumps, cruise control, and the like. Basically, this harness is the perfect way to solve all your needs. On top of that, making things even simpler is that every wire is labeled and is bundled into separate sub-harnesses within the harness to make routing and configuring a no-brainer. Beyond just offering harnesses, Painless offers all sorts of wiring accessories, including wire terminal kits, starters, electric fan relays, kill switches, battery cables, alternators, and more. As you'll see throughout the story we ordered a few of the accessories to complete the job, key words being "a few," because Painless offers a lot. We also ordered a radiator/fan combo from US Radiator. Being that the Concept One serpentine system on the Smeding 383 calls for an electric fan we figured this would be the perfect time to introduce one into the mix. US Radiator not only offers an assortment of fans, but they also make the fan shroud to bolt right up to the radiator for a clean, simple, and professional looking installation.  Here's a few wiring essentials....  Here's a few wiring essentials. Things like these are not only necessities, but are very handy throughout the install. The Painless 84-piece terminal assortment kit was ordered to handle all of the hard wiring, but things like self-tapping screws, wire strippers, test light, Painless Power Braid, and an assortment of zip ties and clamps are good to keep around as well.  The Painless instructions...  The Painless instructions guide you through the wiring process, but the one thing they can't do is tell you where to mount the fuse block and run the wires (unless it's a factory replacement harness, then the fuse block mounting location is already pre-determined), that's done on a case-by-case basis so use your best judgment. In my case, I strayed from the stock location and mounted the fuse block in an accessible location above the brake pedal assembly using a custom "L" bracket I worked up.  Unlike factory harnesses,...  Unlike factory harnesses, Painless takes the guesswork out of tracing wires by labeling and numbering each wire. Not only that, but they have bundled like-minded wires together to create various sub-harnesses within the main harness. For instance, this wire is the (Tail Section) Back Up Lights #956. By referencing that number and section in the manual, one can pinpoint exactly what function it serves.  The 18-circuit chassis harness...  The 18-circuit chassis harness has enough wiring to outfit a fully loaded Cadillac! I knew I wasn't going to use all the accessory wires (e.g., cigarette lighter, cruise control, warning lights, etc.) so I simplified my harness by cutting those wires short and left only what I knew I would use.  I began with the steering...  I began with the steering column harness. Painless doesn't supply a plug-and-play half moon female housing (GM doesn't make them anymore) for a push fit. However, they terminate the harness' steering column wires, which allows one to reuse the OEM plastic housing. Using the labeling on the wire, and the reference chart in the Painless instructions, I wired up the steering column.  Provided in the kit are turn...  Provided in the kit are turn signal flashers. They must be wired into the "hazard flasher" and "signal flasher" wires in the steering column harness. If you're using LED turn signals you'll need to use an LED flasher. (As shown at the bottom left.)  This Painless chassis harness...  This Painless chassis harness is designed to be fully plug-and-play, so long as you use all stock components. In my case, I have a set of Classic Instruments gauges, therefore the easy way out was ... well out! Using the labels on the wires, and the reference chart in the manual, I removed the OEM plug and began routing the wires to the necessary posts.
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The Thinker??? - Haul Monitor
Ryan talks about the friendly badgering that goes on around the shop and overcoming obstacles that seemly pop up out of nowhere during a project....
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