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Expert Answers about GMC C/K Series Pickup


  • Can B&W BWGNRK1000 Turnover Ball Gooseneck Hitch Be Installed With Drop-In Bed Liner
  • It's isn't necessary to remove the drop-in bed liner, you'll just need the 4 inch diameter hole for the B&W # BWGNRK1000 Turnover Ball hitch to pass through the bed liner. You'll also need to cut two slots so the safety chain loops can pass through the bed liner. If you'd like to install a 7-way trailer connector in the truck bed so you don't need to run the trailer connector/cable up over the tailgate, you can install one using part # 20023. I'll link to a typical install video or the...
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  • Where Do The Orange and Blue Wires Under Hood Of 1997 GMC C/K Pickup Connect For Trailer 7-Way?
  • It sounds like you are installing a 7-way and/or brake controller on your 1997 GMC Sierra K1500 pickup. The orange wire will connect to one of the 2 posts at the rear(closest to fire wall) of the engine compartment fuse panel. The other post is for the trailer brake controller. The blue wire does not connect to the fuse box but is the output wire from the trailer brake controller. I have included a video below which shows installation of the Tekonsha Prodigy P2 Trailer Brake Controller...
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  • Wiring a Third Brake Light and Cargo Light on a 1989 GMC K2500 Series Pick Up Truck
  • You will need to find what is called the CHMSL circuit (center high mount stop light) to wire a third brake light on your 1989 GMC K2500. You could use the vehicle owners manual of the legend on the power distribution box lid to find the fuse location and use a fuse tap to power the third brake light. There may be a wire under the truck for this function. Places that install truck bed camper shells may know where it is located. You would not use trailer connector wiring because the brake...
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  • Finding the Correct Brake Switch Wire on a 1994 GMC C/K Series Truck to Install a Brake Controller
  • What you will want to do is test each of those wires with the headlights and turn signals on, one at a time. If one of the wires shows power with the headlights or turn signals on then it is not the correct wire. You need the one that is hot only with the brake pressed and not with the headlights or turn signals on. In the event that neither of those wires is correct and you cannot find one that is at the brake switch, then you can find the stop light or CHMSL fuse and tap into it to connect...
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  • Where to Get Power Supply for the Auxiliary Connector
  • To wire a 12V lead to your trailer connector, you will want to run the wire to the battery, via a 40 amp circuit breaker like part # 9510.
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  • How Do I Get Aux Power On the 6-way of my 1998 GMC Truck
  • You will want to run a length of 10 gauge wire like our 10 Gauge Primary Wire # 10-1-1 through a 40 amp circuit breaker like our part # PK54540 from the positive side of the battery on your 1998 GMC Truck to the center post of the 6-way at the rear of your vehicle 6-way and you will have 12-volt auxiliary power. I attached an FAQ article that should be helpful for you also. Scroll down to steps 11 and 12 to see the information most relevant to you.
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  • How Often Must the Filter be Cleaned on the Airaid Classic Cold Air Intake System
  • According to Airaid, the Airaid Classic Cold Air Intake System part # AR200-104 for your 1995 GMC C/K Series Pickup will need to be cleaned every 30,000 to 50,000 miles with the Cleaning and Oiling Kit for Airaid SynthaFlow Air Filters part # AR790-550. I also recommend using the filter cover part # AR799-420 to protect the air filter from dirt and water as this will help extend the life of your filter.
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  • Can I use a Larger Video Display for the Swift Hitch Wireless Backup Camera System # 04928
  • Yes, you can use the video out cable from the Swift Hitch Wireless Camera System, # 04928, to use a larger video display. I tested this on an 80 inch LED TV at our offices here and it will work. The resolution does not improve, but the video quality is still very good. As long as your 12 volt DVD monitor has the RCA video input, then this will work. Since you also plan on using this on a skid-steer, I recommend mounting the camera as high above the engine compartment as possible and mount...
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  • Adapting Truck with 5-Way Connector to Trailer with 7-Way Connector
  • A 5-way to 7-way adapter is not offered. The best way to proceed would be to install the 7-way connector on your truck, and if you should need to tow a boat trailer in the future, use a 7-way to 5-way adapter, such as part # A75TB. In order to utilize the electric brakes on your trailer with the 7-way connector, you will need to install a brake controller to actuate them. I would recommend a proportional controller, such as the Tekonsha Prodigy P2, part # 90885. As the 1998 GMC trucks...
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  • 5th Wheel Trailer Hitch Installation Kit for a 1989 GMC C/K Series Pickup and Reese 16k Hitch
  • First you are going to need an installation kit. You can use # RP30035. I have included a link to the installation instructions for you. Once the kit is installed you would just pin the hitch in the rails.Hitch # RP30051 is a slider hitch. A slider hitch is not needed on a long bed. You can still use it but you probably will not ever need to slide it back. The same head that is on RP30051 is on the # RP30047. I have linked instructions for it as well.
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  • Replacing Brake Controller in 1985 GMC K2500 With Prodigy P3 Brake Controller
  • It sounds like your 1985 GMC truck already has a working 7-way and wiring since you mentioned you have an electric brake controller already, so you will just need to remove that controller and tap into the correct wires in your truck to add the Tekonsha Prodigy P3 Trailer Brake Controller # 90195. The P3 comes with the harness to splice into your wiring, with the blue wire mating with the brake output wire, the white going to the ground wire, the black to the 12 volt hot lead, and the...
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  • Brake Controller Installation in 1999 GMC 2500 K Series Pickup
  • You can use a circuit tester like # PTW2993 to probe the wires at your GM pickup's brake pedal light switch to find the one wire that carries a voltage ONLY when the pedal is pressed but at no other time. This wire that goes hot only when you press the brake pedal is the one from the cold side of the switch. This is the one you need to connect to the brake controller's red wire, to tell the controller to active the trailer brakes. You can refer to the linked video showing installation...
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  • Should Curt TriFlex Brake Controller be Drawing 21.5 Milliamps in Standby Mode
  • All modern brake controllers including the Curt TriFlex # C24VV draw a few milliamps at idle. The Curt controllers are slightly different in their circuitry and can draw a little more than other brake controllers. This power draw is normal and it would take months of the vehicle just sitting, not ever running, for it to drain a battery.
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  • Installing a Brake Controller on a 1988 GMC K 1500 Pickup Truck
  • GM did not install a brake controller adapter port in the C/K series pick up trucks, so there are no plug-in adapters that will allow you to install a brake controller without having to run wires. If you already have 7-way connector at the rear of your truck, then you could use wiring kit # 5506. This kit includes a duplex wire to run a brake output circuit from the brake controller to your 7-way and to run a wire from the brake controller to the battery (via the circuit breaker) and then...
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  • Replacement Install Hardware for Draw Tite Hitch 41522
  • We do offer a way to order replacement hardware for the hitches we offer like the Draw Tite part # 41522 that you mentioned with our part number # RHK. On the product page of this part number you'll need to select Draw Tite from the drop down menu and then enter the part number 41522 and we'll ship you out the correct parts.
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  • Size of Wrench/Socket Required for Installing Ball Mount C40086
  • The wrench size needed to install the Curt hitch ball part # C40086 that you referenced would be 1-13/16 inches. The torque required for tightening the but is 450 ft lbs...
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  • Brake Controller Port Location for a 2000 GMC Sierra Pickup
  • If your 2000 GMC Sierra is a Classic model, then it will not have a brake controller port. You will need to hardwire in the brake controller and run the wires back to the 7-Way. You would need a part # ETBC7 and some sort of a 4-Way connector. Then you would wire the brake controller to the 7-Way. If your truck is not a Classic model the port should be located underneath a black cover behind and to the left of the brake pedal. I have included a link to a video of a brake controller being...
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  • How Does the Carr M-Profile Light Mounting Bar Mount to a 1999 GMC K1500 Truck
  • On your 1999 GMC K1500 truck, you will also need to purchase the Gutterless Mount Kit for Carr Light Bars, # CARR223411, to install the Carr M-Profile Light Mounting Bar, # CARR210704. The attached instructions link will explain how to install the M-Profile light bar on your vehicle.
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  • Where Do I Connect Red Wire When Installing Brake Controller on 1995 GMC 4x4 Pickup
  • When installing a brake controller in your 1995 GMC Pickup, the red wire will connect to the brake light circuit which can be located at the stop light switch at the top of the brake pedal. Since there is typically more than one wire at the switch, you will need to use a circuit tester like part # PTW2993, to determine which wire has power when the brake pedal is depressed. GM typically used a light blue or white wire for this circuit. Once you have located this wire, you will then tap...
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  • Would Redarc Smart Start Battery Isolator Kit Work on 1978 GMC K25 Truck
  • While your 1978 GMC truck is a bit older it does use a standard alternator like what the Redarc Smart Start Battery Isolator with Wiring Kit # 331-SBI12KIT was designed to work with so it would work great for you.
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