Expert Answers about GMC Sierra 2500

• Can Air Lift WirelessONE Compressor Run Without Pink Wire Connected
• Thank you for your purchase from etrailer of the Air Lift WirelessONE Compressor # AL25980EZ. The pink wire is an optional ignition source connection and does not have to be hooked up; it will just allow the # AL25980EZ to make adjustments right when the ignition is turned on. Otherwise, the unit will activate either when woken up by the controller, mobile app, or when your truck moves.
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• Torque Spec Rating for Curt Rota-Flex Skit Plate Bolts
• Oh wow, that's definitely not a good experience but I'm glad you made it home safely! The bolts that hold the rotating skid plate to the Rota-Flex pin box, like part # LC328329, are definitely Grade 5 bolts and although I'm unsure which exact size they are, Curt/Lippert does give us a torque spec guide in the Rota-Flex instructions so you just have to confirm the size of the bolt and make sure the torque spec matches: 1/2"-13 is 65 ft-lbs 5/8"-11 is 135 ft-lbs 3/4"-10 is 220 ft-lbs Please...
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• Can a Furrion Wireless Backup Camera and Observation System Be Used with GM Infotainment System?
• I have a solution for you, but GM has made it so that only the IntelliHaul Echo Master cameras are wirelessly compatible with their Infotainment systems and we haven't come across any aftermarket wireless observation system for RVs that can be paired with these sytems. With that being said, there are some bonuses that come along with using a Furrion system like the # FCE48TASL-05 (5" monitor) which has the rear camera and monitor, as well as side marker light cameras. These side view...
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• How to Determine Correct Height Setting for 5th Wheel Hitch
• Choosing the right height setting for your 5th wheel hitch is a combination of a few different variables. First of all you want your towing setup to be as level as possible. With your Montana High Country 340BH level you will want to measure from the ground to the bottom of your pin box where the king pin is at. The next step is to choose which of the 3 height settings on your 5th wheel hitch, 17", 18" or 19", gives you the most level ride. Simply measure from the ground to the head unit...
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• What is Gooseneck Trailer Coupler Overhang and Clearance Needed
• In regards to a gooseneck trailer, the coupler overhang is essentially the "neck" of the gooseneck. To make sure you have enough clearance to go over road bumps and make sharp turns, you want to have at least 6 inches between the overhang of your gooseneck trailer and the bed rails of your truck. This is measured from the bottom of the overhang to the top of your truck's bed rails, as shown in the attached photo.
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• Is There A Way To Daisy Chain Two Mighty Cord RV Power Cord Adapters?
• I do have a solution for you, however since your Mighty Cord RV Power Cord Adapter # A10-3050EHD has a twist lock on one end, there is not going to be an adapter. Instead, the best solution I can offer is to cut off the twist lock connector on one cord, and re-wire the one end with the: -Power Grip Replacement RV Power Cord Adapter Receptacle w/ Handle # CAM55343. From here, you would plug the one twist lock connector into your trailer, plug the male 30amp to the newly rewired 30amp...
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• What Batteries Will the TorkLift PowerArmor Box with Solar Charger # TLA7700LS Charge
• The TorkLift PowerArmor Solar Locking Battery Box - 6 and 12V Lithium Batteries - Powder Coated Aluminum # TLA7700LS will charge lead acid batteries, AGM batteries and deep cycle batteries. I spoke to my contact at TorkLift and confirmed it will keep 2 batteries charged. He also said the TorkLift PowerArmor Solar Locking Battery Box is a trickle charger, meaning it will maintain the charge but it won't really add to the charge, unless left on for a long period of time.
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• Does the Curt Hitch C14009 Not Attaching to Truck's Bumper Affect Strength of Hitch/Bumper
• I spoke with my contact at Curt about this and here was his response: All of our hitches are tested to SAE J684 standards. Hitch # C14009 is not an OEM style hitch, thus it does not use the truck bumper for support. The OEM hitch uses the bumper to support the hitch. The hitch does not support the bumper.
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• Does Battery Need to be Disconnected to Install Roadmaster Flex-Coil Wiring Kit on 2019 Sierra 2500
• The Roadmaster Diode Flexo-Coil Wiring Kit # RM-15247 that you referenced will simply tap into the tail light circuits on your 2019 GMC Sierra 2500 so they can be powered in correspondence with the RV while flat towing. The installation of this system does not require the battery to be disconnected, but the owner's manual for your Sierra requires that this be done to flat tow the truck which is why we have it mentioned in our fit guide. GMC requires this so that the battery doesn't drain...
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• Installation of Convert-A-Ball Offset 5th-Wheel-to-Gooseneck Adapter CAB-C5GX1216
• The Convert-A-Ball Offset 5th-Wheel-to-Gooseneck Adapter # CAB-C5GX1216 secures to you 5th wheel trailer's king pin with 3 bolts that hold it in place flush against the bottom of the pin box. If you refer to the linked photo you'll see these bolts. I would first make sure this coupler is properly secured to the trailer's king pin. Next I would check that you have the height adjustment at the correct position that keeps the trailer level when it is hitched. The adapter has a height adjustment...
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• How To Bypass ITBC On 2021 GMC Sierra 2500 with the Tekonsha Prodigy P3
• In order to bypass the factory trailer brake controller (ITBC) on a 2021 GMC Sierra 2500 with the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 you'll need the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3064-P. You'll have to disconnect the blue wire from the harness and route this to the trailer connector using the part # 10-1-1. This will bypass the factory brake controller without error codes.
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• Wiring 3rd Brake Light on Truck Cap for 2015 GMC Sierra 2500 Duramax
• The dark blue wire that you found actually coming from your Sierra 2500's 7-Way connector carries the signal for the trailer's electric brakes. You won't want to tap into this wire for the third brake light on your topper because of the variance in voltage that would be carried on this wire that is dependent on your braking. This would result in a brake light on your topper that can be extremely dim or bright depending on how hard you're slamming on the brakes or how you have the brake...
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• What Keeps Demco 5th Wheel Rail Adapter DM6194 In Place when Towing
• The four posts on the bottom of Demco adapter # DM6194 do just sit in the pucks. The gooseneck attachment, which uses ball bearings to secure into the gooseneck ball cavity, is what keeps the adapter in place. The pin weight of the trailer will keep the adapter held down as well. While there may be some vertical movement as there is with any hitch it would not be enough for a sudden and rapid shift of weight to bend the adapter. I have linked a review video and the instructions for you...
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• Using TorkLift Solar Power Kit # TLA7713 with Two 6 Volt Batteries
• The Torklift Solar Power Kit # TLA7713 referenced in your question will work with both 6 volt and 12 volt batteries. You will only need to add an 8-amp regulator # TLA7715 if you are planning on using 4 or more batteries and you are connecting two of the TorkLift Solar Panels. Since you are using two 6 volt batteries, you will not need a regulator. I have attached an image that shows the wiring instructions when using two 6 volt batteries that you might also find helpful.
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• Does Fold Down Truck Bed Expander # C57WR Have to Be Removed to Load ATV
• I spoke with my contact at Topline and we recommend that you remove the Truck Bed Expander, # C57WR, before loading an ATV into the bed of your truck. The expander is easily removed with just the release of two pins. I have attached a video for you to check out.
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• Is 2020 Jayco Eagle 347BHOK Prepped for Side Cameras on Furrion Vision S Camera System
• I personally think the 3-camera systems from Furrion, like the Furrion Vision S Wireless RV Backup Camera System # FCE48TASL-05, are one of the best options out there because they give you a better view of your surroundings. When installing the side cameras you will need to wire them to the running light circuit as well as the turn signals, so the side camera installation won't be as cut and dry as the rear camera. The running light circuit will give them power while the turn signals not...
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• Will Air Lift LoadLifter 5000 Ultimate Air Springs with Jounce Bumpers Raise a 2021 GMC Sierra 2500
• The Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers part # AL88341 which are a fit for a 2021 GMC Sierra 2500 won't change your ride height while at the minimum psi setting which is 10. The psi is just there to keep the bag for deforming but it won't lift the truck.
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• Can the Progressive Dynamics Pure Sine Wave Inverter Be Used with Transfer Switch Already on Trailer
• Yes, you can use the Progressive Dynamics Pure Sine Wave Inverter part # PD64FR with an external transfer switch. In order to do this you'd just use the inverter output to another switch and not involve the inverters 120 volt input side. This would bypass the internal transfer switch. I confirmed this with my contact at Progressive Dyanmics for you.
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• Do Both Upper Bolts of Lippert Tandem Axle Lift Kit part # LC407131 go Through Spacer
• Yes both of the upper bolts of the Lippert Tandem Axle Lift Kit part # RR23QX go through the spacer like you mentioned.
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• What Parameters Can Be Monitored with the Edge Insight CTS3 On a 2020 GMC Sierra 3500 with 6.6L
• In regards to the Edge Insight CTS3 Comprehensive Gauge Display part # EP54FR which is a fit for a 2020 GMC Sierra 3500, the following can be monitored for models with the 6.6L Duramax Engine: Accel Pedal Position, Ambient Air Temp, Barometric Pressure, Battery Voltage, Corrected Speed, Desired FRP, Desired Idle RPM, Distance Code Cleared, Distance Since Regen, EGT Exhaust Manifold, EGT1 Post Turbo, EGT2 Post CCDOC/Pre SCR, EGT3 Post SCR/Pre DPFDOC, EGT4 Post DPFDOC/Pre DPF, EGT5 Post...
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