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1994 GMC C/K Series Pickup Accessories

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1994 GMC C/K Series Pickup Questions and Answers


  • Gooseneck Hitch and Wiring Recommendation for a 1994 GMC 2500 Truck
  • The gooseneck hitch we offer with the best price that is confirmed to fit your 1994 GMC 2500 truck would be the Reese Fold-Down Gooseneck Trailer Hitch with Installation Kit # 8339-4440. I attached a link to the installation instructions for you to check out. For trailer lighting let's start with a 4-way, you may already have one. But in case you do not you would want the Curt Wiring part # C55315. Now to convert this to a 7-way you would want the Brake Controller installation kit part...
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  • Installing Curt Venturer Trailer Brake Controller # C51110 in 1994 GMC 3500 C/K Series Pickup
  • If you cannot access the wire going to the hot side of your brake light switch you may be able to access the brake pedal switch signal at an electrical box located near the emergency brake pedal. If you can find in this box a terminal(s) labelled NAT this might provide an alternative means to obtain the signal. You can use your circuit tester on this pin to confirm that it carries a signal ONLY when the brake pedal is pressed (and not when other vehicle functions are activated). I have...
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  • 5th Airborne Air Ride Coupler Recommendation for a 2002 Alfa Sun w/ RBW 7016 Pin Box.
  • I did some research and I could not find any information on a RBW 7016 pin box. Everything I saw said that there was only a RBW 7016-2P. Since RBW is no longer in business I was not able to contact them and here directly from the horse's mouth. There is a way for you to determine if you do have a -2P though. You will need to take a few measurements on your pin box and we will know for sure what you have. Check out the picture I attached. Your 2a measurement should be 7-1/4 inches,...
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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...
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  • Which Curt 5th Wheel Set-Up Would be Best for a 1994 GMC 3500 Towing a 15,840 lb 5th Wheel Trailer
  • To install a Curt 5th wheel hitch and base rails in the bed of your 1994 GMC 3500 you can use the Curt E5 fifth-wheel trailer hitch and universal base rails with installation kit, # C16116, if you have an 8 foot bed and your trailer weight will always be below 16,000 lbs. If you have a 6-1/2 foot bed you can use the Curt E5 hitch with slider and install kit, # C16616. These kits include the above bed rails and hardware and the below bed hardware and brackets for installation on the GMC. I...
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  • Troubleshooting High Transmission Temperatures after Transmission Cooler Installation
  • I would try reversing the direction of the fan on the Derale Transmission Cooler # D15960 that you have installed on your 1994 GMC Truck to see if that will yield you cooler oil temperatures. Generally speaking coolers loose from 25 to 40 percent of their cooling efficiency when the fan pushes air through the cooler as opposed to being pulled through it. Also, depending on the location of the cooler in relation to underside of your vehicle the fan might be fighting the natural airflow...
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  • Complete Wiring for Lights, Electric Brakes and Controller for a 94 GMC 1/2 Ton Truck and Trailer
  • Lets start with your 1994 GMC 1/2 Ton Truck. You will need to start with the # 118315 4-Way connector. Once the 4-Way is installed, see instructions link, you will need the Brake Controller Installation Kit, # ETBC7, and a brake controller. I recommend the P3 Brake Controller, # 90195, which is one of the best controllers we carry. We have detailed instructions for installation of the controller and the wiring kit, see links, and we have installtion videos of a brake controller and wiring...
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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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