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Expert Answers about GMC Sierra


  • RoadActive Suspension Enhancement for 2004 GMC Denali with Quadrasteer
  • I have an option for you, but the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611 is not compatible with the Quadrasteer system on your 2004 GMC Sierra Denali. Your best bet and the only confirmed suspension enhancement solution that won't interfere with your Quadrasteer components, is the Timbren Rear Suspension Enhancement System # TGMRCK25S. These hollow rubber springs sit above the rear axle to help stabilize and level your Sierra.
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  • Will Running Boards From a 2015 Chevrolet Silverado Crew Cab Fit a 2011 GMC Sierra Crew Cab
  • Yes, the factory running boards from a 2015 Chevrolet Silverado Crew Cab will fit a 2011 GMC Sierra Crew Cab so long as they are both the 1500 models. That said, we do not offer factory running boards only aftermarket running boards such as the Westin R5 Nerf Bars part # 28-51035.
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  • Pace Edwards JackRabbit Tonneau Cover That Fits 2011 GMC Sierra With 5-1/2 Foot Bed
  • So the JackRabbit TR2032 tonneau cover you mentioned has been discontinued for some time, so there aren't replacement covers that are available. While I know this isn't exactly what you were looking to hear, the only option we can offer since your cover is not functioning is to replace it with a new tonneau cover for your 2011 GMC Sierra 1500 with a 5-1/2 foot bed. If you liked the JackRabbit, you can get the latest model that fits your Sierra, and the fit depends on if you have the Cargo...
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  • Are There Retractable Tie-Down Anchors for a 2008 GMC Sierra?
  • The ProGrip Retractable Tie-Down Anchors # 317-850760 are a confirmed fit in the factory stake pockets on the 2008 GMC Sierra, so as long as the chrome rail caps that you have on your bed rails have the same sized stake pockets as your factory rails these tie down anchors will work. You may also want to have a look at the Extang CargoCleats Truck Bed Tie-Down Anchors # EX1932. These are a moveable tie down that will work perfectly with your chrome rail caps since they mount under the...
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  • Electric Over Hydraulic Brake Compatibility with Ford, GM, and Dodge Integrated Brake Controllers
  • The adapter # HBA-CAM will only work with HydraStar Electric-Hydraulic Brake Actuators. The Dexter actuator does not work with the GM or Ford integrated controllers but the Dodge ones seem to be fine. For the 2011 GM truck you will need to install an aftermarket controller. We actually have an FAQ article that covers this very problem. I have included a link to it for you. For a compatible brake controller I recommend the P2, # 90885, because it is easy to set up and easy to use. There...
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  • How To Upgrade the Husky Center Line Weight Distribution System From 600 lbs to 1,200 lbs
  • Correct, the Replacement Spring Bar for Husky Center Line Weight Distribution Systems part # HT32329 will work on the Husky Center Line Weight Distribution w/ Sway Control part # HT32216 without any other parts needed.
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  • Bestop Supertop Collapsible Bed Cover for a 2013 GMC Sierra Extended Cab Short Bed
  • All of the Bestop Supertop Collapsible Bed Cover look the same because they are the same item, but have different item numbers based on the model and series of your truck and the length of your truck bed. If your 2013 GMC Sierra Ext Cab Short Bed is the 6-1/2 ft bed, then you will want the Bestop Supertop, # B76303. If your truck has the 5-1/2 ft bed, then you will want part # B76310. You should also note, these tops will not work with the factory cargo management system. The cargo...
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  • Can a Fixed Reese 5th Wheel Trailer Hitch Change to a Slider for a 2003 GMC Sierra Short Bed
  • Yes, you can change over your 16K Reese 5th wheel hitch from a fixed to a slider. You will need to use the Reese Fifth Wheel Slider w/ Rollers, # RP30048 or # RP50024. I have linked a video and instructions for you. This slider will provide 10 inches of travel. To make sure the slider will provide enough clearance for you to safely make tight turns without hitting the trailer and truck cab together, there is a simple formula you can use. Measure from the center of the hitch jaws where...
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  • What Spindle Does the Dexter 8-248-05 Hub Fit
  • The Dexter Hub part # 84545BX that you referenced is designed to fit the 84 spindle like the part # TRU74FR.
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  • Will the Hopkins 7-Way to 4/5-Way Adapter Fit a 2004 GMC Sierra 1500 w/ Factory Tow Package?
  • If your 2004 GMC Sierra has a 7-way connector then the Adapter 7-Pole to 4-Pole and 5-Pole item # 37385 will definitely work. This wiring Adapter converts the 7-way trailer connector on your vehicle to a 4-way or 5-way connector.
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  • Recommended B&W Offset Ball for a 2012 GMC Sierra
  • Thanks for the pictures! It looks like your 2012 GMC Sierra has the B&W Turnover Ball System item # BWGNRK1057. You will need the 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches # BWGNXA4085. The 2-5/16" offset ball will give you an additional 4" of clearance when towing your gooseneck trailer. You can use this with your Super Ride 5th Wheel hitch but since the hitch ball will add height you will need to make adjustments to your coupler accordingly. A better option would...
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  • Can Spacers be Used with SumoSprings Solo Custom Helper Springs on 2001 GMC Sierra 1500 LD
  • The SumoSprings Solo Custom Helper Springs # SS95MR will be a total of 6" in height once fully installed on your 2001 GMC Sierra 1500 if you use the 1/2" spacer that is included. With the 7-1/4" clearance you measured there will a 1-1/4" gap. Your vehicle would need to sag 1-1/4" before the SumoSprings would start to engage. According to SuperSprings, no additional spacers can be used with these SumoSprings. Instead of the SumoSprings, I recommend the RoadActive Suspension Custom Leaf...
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  • Curt 5th Wheel Brackets and Base Rail Kit for 2008 GMC Sierra 2500
  • Yes they do! I can confirm the Curt Custom Fifth Wheel Installation Kit for Chevy/GMC # C16418-104 do fit your 2008 GMC Sierra 2500. These are the same as the Curt Custom Fifth Wheel Installation Kit for Chevy/GMC # C16418-204, with the only difference between the two parts being the finish of the base rails: - Gloss Black Finish: Fifth Wheel Installation Kit for Chevy/GMC - Gloss Finish # C16418-104 - Carbide Black Finish: Custom Fifth Wheel Installation Kit for Chevy/GMC - Carbide Finish...
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  • Do The Tow Hooks Need Removed To Install the Westin Grille Guard On 2002 GMC Sierra 1500
  • The Westin Sportsman Grille Guard part # 40-0335 is a fit for a 2002 GMC Sierra 1500 but it will require that the tow hooks be removed from the vehicle as they occupy the same mounting holes as the grille guard. That said, this will be the case for any grille guard or bull bar so it's not like there is another option out there that will allow you to retain the tow hooks either unfortunately.
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  • Will Curt Q16 Fit Previously Installed Reese Rails in 2005 GMC Sierra 2500 HD
  • The Curt Q16 5th Wheel Trailer Hitch # C16521 is designed to fit industry standard above-bed rails. As long as the Reese base rails installed on your truck are industry standard rails, such as part # RP50064-58 or # RP56007-53, you will be able to use your existing Reese rails with the Curt Q16 # C16521. If you are unsure if the Reese rails in your truck are industry standard, you can take a couple of measurements. I have attached a photo showing the measurements of industry standard...
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  • Recommendation for Wiring Adapter for the Hopkins # 47284 on a 2011 GMC Sierra
  • I have good news for your brake controller adapter needs. If you already have the Hopkins # HM47284 brake controller, you will need the universal wiring adapter # HM47685. Also if your vehicle already has the factory 7-way you will most likely have a factory bundle of wires under your dash by your left shin that we can splice into for this brake controller. According to my information the red/black GM wire goes to brake controller black. The white wires go together. The light blue with...
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  • Can A Rooftop Cargo Box Be Installed Onto A Ladder Rack's Crossbars?
  • You are absolutely correct; the Thule Force XT XXL Rooftop Cargo Box - 22 cu ft - Black AeroSkin # TH6359B can fit onto a ladder rack as long as the crossbars are smaller than the max size that the box allows for. The Thule Force XT XXL fits crossbars that are up to 3-1/2" wide and up to 1-11/16" tall, while the Buyers Products Truck Bed Ladder Rack w/ Load Stops # 3371501680 has crossbars measuring 3-1/4" wide and 1-1/2" tall, so it will work well together. This ladder rack is confirmed...
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  • Derale Transmission Fluid Cooler For a 2006 GMC Sierra 2500HD With AN Transmission Lines
  • To attach the Derale 19-Row, High-Performance, Stacked-Plate Cooler # D51978 you will need to get the correct fittings to match your AN fittings you added to your transmission lines. Derale -6 AN Aluminum Fitting # D59006 Derale -8 AN Aluminum Fitting # D59008 Derale -10 AN Aluminum Fitting # D59010 Derale -12 AN Aluminum Fitting # D59012 You will be able to run the lines directly to the cooler and remove the lines that go into the radiator. I do recommend using a Edge Insight CS2 Comprehensive...
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  • Will the Replacement Rail Pins and Clips for Curt 5th Wheel Trailer Hitches Work with B&W Patriot
  • Yes, the Replacement Rail Pins and Clips for Curt 5th Wheel Trailer Hitches and Gooseneck Adapters part # C16902 will work with the B&W Patriot 5th Wheel Trailer Hitches. The pins are fairly universal so there will be no issues with fit.
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  • Does the Timbren Suspension System # TGMRCK15S fit a 2006 GMC Sierra Extended Cab Short Bed?
  • Yes, the Timbren Rear Suspension System part # TGMRCK15S that you referenced will work on your 2006 GMC Sierra 1500 extended cab short bed. I confirmed this with Timbren. I also attached an installation video for this product on a very similar Silverado and installation instructions.
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