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Expert Answers about GMC Sierra


  • Air Helper Springs For A 2012 GMC Sierra 1500
  • Yes, The Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88211 are confirmed to fit your 2012 GMC Sierra 1500. The air bags have a 5,000 pound capacity. The springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. The springs are made out of 2-ply, fabric-reinforced rubber. They have an adjustable air pressure between 5 psi to 100 psi. The Air Lift WirelessONE Compressor...
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  • Converting From 7-Way Round to 7-Way Flat Connector
  • We do offer the Trailer Connector Adapter, # HM47425, which converts a 7-pole round connector to a 7-pole flat connector. This adapter works for tow vehicles with combined taillight wiring, meaning that the turn signals and brake lights run on the same pin. If by chance your tractor has separate taillight wiring, meaning that the turn signals and brake lights run on separate pins, you will need to add a converter, like the Curt # C56175. Just cut off the 4-way end and wire it into this...
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  • Trailer Brake Controller in 2003 GMC 2500 HD Works on One Trailer But Not the Other
  • The harness that is used to install a brake controller like the Tekonsha P3 # 90885, like the # 3015-P that you're currently using, is going to be vehicle specific and not trailer specific. The # 3015-P is the correct harness for your 2003 GMC Sierra 2500, so you do have the correct controller adapter plug for your truck. Usually when the brake controller only controls the brakes with the manual override and not the pedal, it indicates a bad connection with the stop light switch; the...
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  • TruXedo Tonneau Cover Replacement Fabric For 2013 GMC Siera
  • I believe we have what you need, although I can't say for certain without knowing what your specific tonneau is, however I believe the correct replacement is the Replacement Tarp for TruXedo Original Soft Tonneau Cover # TX370601-CVR for the TruXedo Original Soft Roll-up Tonneau Cover # TX370601.
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  • Electrical Adapter for a 2008 GMC 1500 SLE
  • The electrical adapter, item # A75TB, converts an existing 7-pole plug to a 5-pole flat. Do you have a 7-pole plug on your GMC? If not, you will need to install a 7-way plug, item # 30955.
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  • Recommended Wiring Adapter for an Older Tekonsha Voyager Brake Controller on a 2003 GMC Sierra 1500
  • You can buy an adapter for your Tekonsha Voyager brake controller for your 2003 GMC Sierra 1500. I recommend using the Tow Ready Wiring Adapter, part # 3015-S. There will be some splicing involved because the older Tekonsha Voyager brake controllers came with blunt cut wires rather than a plug-in style connector. You can simply splice the wires from your Tekonsha Voyager brake controller to the wires from this wiring harness color for color. The Tow Ready harness includes butt connectors...
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  • Can A Trailer Hitch Mount Cargo Carrier Be Used With A Front Mount Hitch On A 2011 GMC Sierra
  • Yes, you can use the Flint Hill Goods Hitch Mounted Aluminum Cargo Carrier # FHG59ZR with your front mount hitch on your 2011 GMC Sierra. There will be a few things you should be aware of though. A loaded cargo carrier can reduce driver visibility, block the vehicle's lights, and reduce airflow to the motor. If the cargo is properly secured then you will not have to worry about that aspect of it. Another option would be to use the Multi Purpose Ball Mount # D210. Using this ball mount...
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  • Replacement Tarp For TruXedo Lo Pro Tonneau Cover On A 2011 GMC Sierra 1500 Short Bed
  • I'm sorry to hear about the troubles you're having! I took a look at The Replacement Tarp for TruXedo Lo Pro Soft Tonneau Cover # TX571101-CVR that you mentioned, and this is actually meant to fit, among other models, the 2008-2013 GMC Sierra with 6-1/2' long beds. Since you mentioned it was too big, that would indicate that you have the 5-1/2' bed instead. I did a little research, and GMC never made a 6' bed, but they did make a 6-1/2', 8' and 5-1/2' bed. With that being said, I believe...
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  • Parts Needed to Flat Tow a 2013 GMC Sierra 1500 Behind a Motorhome
  • We have exactly what you need to flat tow your 2013 GMC Sierra 1500 behind your motorhome. We do not have an all inclusive kit that has everything, but what I can do is list each part that you will need. I will also include a brief description of what it is for and a recommendation for each part. A flat tow set-up will consist of at least 5 parts. You will need a base plate kit, tow bar, safety chains, tow bar wiring and supplemental braking system. Base Plate Kit: This is going to be...
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  • Replacement Mounting Brackets for Westin Platinum Series Nerf Bars on a 04 GMC Sierra Single Cab
  • We do have the mounting kit for the Westin Platinum Series Oval Nerf Bars item # 21-1405 you referenced on your 2004 GMC Sierra 1500 Standard Cab. You will need the Replacement Mounting Kit for Westin E-series Nerf Bars 23-1400 item # 23-140PK.
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  • Do I Need to Replace the Bearings When I Replace My Brakes
  • Wheel bearings are going to be hub and spindle specific and aren't going to effect which brakes you'll want to use. It sounds like you might have a 7k axle with 12" brakes on your trailer, so you can use the # AKEBRK-7R-SA (right) and # AKEBRK-7L-SA (left) which are a self adjusting brake assemblies and a great choice. These are sold as single assemblies and are side specific, so you'll need to order the brake for each side, or the complete set is available with part # AKEBRK-7-SA. You...
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  • Replacement Mounting Hardware For Westin E-Series Running Boards On A 2006 GMC Sierra
  • Sure thing! Check out the: -Replacement Mounting Brackets and Hardware for Westin 3" Round Nerf Bars # 23-195PK. This is the replacement hardware for your Alpine Gear running boards (re-branded Westin E-Series) that will fit your 2006 GMC Sierra, and incudes all the brackets and hardware needed for a complete installation.
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  • Recommended Hitch and Weight Distribution System for a 2005 GMC Sierra
  • I would be happy to help you set your 2005 GMC Sierra up to tow your trailer. With that low of a towing capacity I can safely assume you have a 1500. That is what my recommendations are going to be based on. Along with a weight distribution system you're going to need a hitch and a brake controller as well. That heavy of a trailer will require brakes. For your hitch you will want the etrailer Trailer Hitch Receiver item # e98849. This is a class III hitch with a 2" receiver. It is custom...
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  • Parts Needed to Flat Tow a 2004 GMC Sierra 1500 z71 Behind an RV Using Blue Ox Aventa II Tow Bar
  • Blue Ox base plates are specifically for the 3/4 ton 2500 Sierras. For a 2004 Sierra 1500 Z71 you will need to use # BX1682. These base plates are compatible with your Aventa II tow bar. If you need to add safety cables you can use # BX88197. For a lighting solution you can use the 6-diode kit # 154-792-118158. Once the kit is installed you will not have to worry about again so it is a great option. And finally, most states now require supplemental braking on the vehicle being flat towed....
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  • Spacers Needed for Air Lift LoadLifter 5000 on Lifted 2006 GMC Sierra HD 2500
  • In order to use the Air Lift LoadLifter 5000 # AL57275 with a lifted truck, you will need to use spacers that match the amount of height gained in the rear after installing your lift. For example, if your rear end raised 4" after the lift, you would need 4" spacers like the # AL52440 . You'll want to use the 2" spacers # AL52420 for 2" of lift. If you have a different amount of gain from the lift on your 2006 GMC Sierra 2500HD let me know and I can recommend a different spacer.
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  • Parts Needed To Install The Redarc Tow-Pro Liberty Brake Controller On a 2008 GMC Sierra
  • To complete the installation of the Redarc Tow-Pro Liberty Brake Controller # RED24FR on your 2008 GMC Sierra, you will need a Universal Wiring Harness # RED69FR, a M6 Flange Nut # 185916 and M8 Flange Nut # 185917. There is not a plug and play option for your Sierra as the wiring is bundled near the brake pedal and does not have a OE connector. You will need to splice the wiring from the Redarc harness to your factory wiring. You can choose to solder the wiring and cover with electrical...
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  • Replacement Breakaway Switch For A ESCO Breakaway Switch
  • Since breakaway switches are pretty much universal, you can use the Hopkins Replacement Break-Away Switch # HM20014 for your ESCO breakaway switch. Additionally, the lead wires on # HM2001 are 44" long so you should have plenty of length.
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  • Recommended Sway Control Kit to Install on Passenger Side of 2006 GMC Sierra
  • I suggest using the Reese Sway Control # 83660. It can be installed on either side of the trailer's tongue. I've linked an install video for you.
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  • Replacement Tarp Cover For Truxedo TruXport On A 2011 GMC Sierra
  • The Replacement Tarp for TruXedo TruXport Soft Tonneau Cover # TX571101-CVR is the correct replacement tarp needed for your 2011 GMC Sierra. This will replace the tarp on the TruXedo TruXport Soft, Roll-Up Tonneau Cover # TX271101. This tarp will require the original TruXport hardware and rails for installation. If you have any further questions please feel free to reach back out to me anytime and I would be more than happy to further assist you. La bâche de remplacement pour TruXedo...
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  • Base Plates, Tow Bar & Related Flat Towing Items for 2005 GMC 2500hd Duramax Diesel
  • Flat towing a vehicle behind a motorhome requires a number of components including the tow bar, base plates and supplemental braking system. These and the other required components are detailed in the linked overview article on flat towing. Two additional articles are provided too for braking systems and high/low hitch adapters. Our installers like the Blue Ox kits for their consistent fit so I recommend for your GMC Sierra (or Silverado) 2500 the base plate kit # BX1660. This includes...
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