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Expert Answers about Hummer


  • How to Install a Brake Controller on a 2008 Hummer H3
  • Brake controllers can be used with virtually any vehicle so there are not many vehicle specific instructions out there. Underneath your dash somewhere is a bundle of 4 or 5 wires Red, Light Blue, Black, Dark Blue and possibly Orange. The Orange wire will not be used. The bundle is usually taped up in one of three places underneath the dash. Sometimes it is next to the center console by the gas pedal, sometimes it is above the emergency foot brake by the door and other times it is behind...
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  • How Tall Are the Pewag All Square Mud Service Snow Tire Chains
  • The square links on the pewag All Square Mud Service Snow Tire Chains - 1 Pair # PWE2441S are 8.2mm thick (.31 inches), so they will sit about 1 inch tall when mounted on the tires. There isn't a precise measurement on this since it depends on the tires, but you can generally expect about that much added height.
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  • Which Chains Fit 35x12.5x18 Tires and Can Be Used on Mud and in Deep Snow
  • I have a solution for you, but the # PWH2433S will not fit on a 35x12.5x18 tire. However, the pewag All Square Mud Service Snow Tire Chains - 1 Pair # PWE2441S are the perfect solution if you need to take your vehicle off road in mud and/or snow. These chains are made from a nickel manganese alloy to provide strong rust resistance and the square steel links provide great traction on all surfaces. I've linked a short review video of these chains, as well as all of the chains that will fit...
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  • No Trailer Brakes When Stepping On Brake Pedal in 2003 Hummer H2 with P3 Brake Controller
  • Your 2003 Hummer H2 has the same setup as the GM SUVs and trucks of the same year. You should be using brake controller harness # 3015-P. Make sure that the position of the red wire in the end of he harness that plugs into your H2 is positioned in the top right corner (with the connector clip facing up) next to the blue wire. If it is not in this location move it there. This is the wire that tells the controller that you are stepping on the brake pedal. If the red wire is in the right...
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  • Do Aries Automotive AA204075-2 Stainless Steel Nerf Bars for 2005 Hummer H2 Include Install Hardwa
  • The Aries Automotive # AA204075-2 includes the step bars, the mounting brackets and all hardware necessary for completing the installation. This application is indeed compatible with your 2005 Hummer H2.
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  • Yakima SpareTime Bike Carrier Back Plate For A 2006 Hummer H3
  • The Replacement Back Plate for Yakima SpareTime Bike Carrier Item # 8880578 is compatible with the 2006 Hummer H3 6x5.5 bolt pattern.
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  • Will the Trailair Flex Air 21K Pin Box for Lippert 1621 Work On an 18K GVWR Trailer
  • Yes, the Trailair Flex Air 5th Wheel Pin Box part # LC369535 which is rated for 21,000 lbs will work just fine on a trailer with Lippert 1621 Pin Box and 18,000 lb gross vehicle weight rating (GVWR). The gross vehicle weight rating is the most the trailer can weigh fully loaded so you will never exceed the weight capacity of the pin box and even have a few thousand lbs of wiggle room.
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  • Magnaflow Catback Exhaust System Recommendation for a 2003 Hummer H2
  • Yes, as long as you have a 6.0 liter V8 gas engine in your 2003 Hummer H2 the Magnaflow System part # MF16673 that you referenced would work just fine with your rear air load leveling system.
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  • Can a Transmission Cooler be Used to Bypass the Factory Cooler on a 2007 Hummer H3
  • It is usually the other way around with factory transmissions coolers in radiators. By that I mean that normally you see a problem with the factory coolers, not the aftermarket replacements. It is possible to bypass the factory cooler in the radiator by blocking off the input/output locations for the transmission cooler on the radiator. You would then need to mount the largest possible cooler that you can get to fit or install a remote cooler with its own fan. The Series 9000 Plate-Fin...
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  • Comparing Roadmaster Base Plates for 2007 Hummer H2 and Recommended Flat Towing System Components
  • The Roadmaster MS Base Plate Kit - Fixed Arms # 2503-1 does not have the removable connections like the # 2506-1 or even the # 2506-3. The removable option gives you a cleaner look when not connected, but the connection will be similar. The # 2506-1 style of arms is compatible with Quick Disconnects and all Roadmaster tow bars, where the other options are not able to use the Quick Disconnects and are not compatible with coupler style tow bars. This compatibility is the only reason why...
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  • Dimensions of the Convert-A-Ball Cushioned Ball Mount/Clevis/Pintle # AMCC2
  • I wasn't sure exactly what dimension of the Convert-A-Ball Cushioned Ball Mount/Clevis/Pintle # AMCC2 you were looking for so I went out into our warehouse and measured it in several places and attached a picture of it to show these measurements.
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  • Small Popup Trailer Leaf Spring Suspension Enhancement
  • The Timbren # TTRA1032 is a great help to a trailer. For your small trailer you will want the Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs # TTRA1702. It sounds like this is exactly what you are seeking.
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  • How to Lock the Curt Multi-Ball Adjustable Ball Mount part # D900 to Its Shank and to Hitch
  • We have exactly what you need to lock the ball mount platform to the shank of your Curt Multi-Ball Adjustable Ball Mount part # D900 and to lock the shank to your hitch. What you would need is the Trailer Hitch Receiver Lock # e98881. You will need to order a quantity of 3 of these locks and select the keyed alike option before you hit the add to cart button and we will send you out 3 of these locks that will all use the same key. The part # LPL55CB would also be a great license plate...
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  • Wiring In The Roadmaster 12v Outlet Kit # RM-9332 In A 2003 Hummer H2
  • You should not need to disconnect the # RM-9332 when jumping the vehicle battery, but I do agree that the ground wire should be placed elsewhere. I typically use a self-tapping screw and shoot it right into some bare metal in the engine compartment. I typically try to run the wire along the outer edge of the engine compartment to keep it out of the way for whenever other maintenance needs to be done.
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  • Roof Mount Cargo Bag Recommendation for a Hummer H3 without a Roof Rack
  • I recommend going with a different bag that you can use with the hooks on your Hummer H3. Rightline cargo bag # RL100S30 should be a good option for you. It will attach to a vehicle with or without a roof rack, and in the event that the hooks aren't going to work, which is unlikely, then you could use car clips # RL100600 to secure it to the roof. The clips fit in the gap between the roof and top of the door. I also recommend using protective pad # RL100650 to not only protect the Hummer...
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  • Do Aries Round Nerf Bars Fit 2003 Hummer H2
  • They absolutely do! I verified for you that the Aries nerf bars do indeed fit your 2003 Hummer H2, and are available in both a black powder coat and polished stainless steel: - Black Powder Coated Steel: Aries Round Nerf Bars # AA204075 - Polished Stainless Steel: Aries Round Nerf Bars # AA204075-2 These Aries nerf bars are a nice choice as they will do the job of making it easier to get in and out of your Hummer while also providing it with a unique, more rugged overall aesthetic.
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  • Will the Curt Roof Mounted Cargo Basket Part # C18115-117 Fit a 2006 Hummer H2
  • We have not yet tested the Curt Roof Mounted Cargo Basket part # C18115-117 on a 2006 Hummer H2 with a factory roof rack therefore, in order to determine compatibility you would need to do a bit of measuring on your Hummer. For starters, the Curt cargo basket works with crossbars that are spaced between 22 and 50 inches apart on center and do not exceed 3" wide x 1-5/8" tall. Therefore, as long as the factory roof rack on your H2 fits these two criteria then it will work well for you. Unfortunately,...
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  • What Diameter Line is Used with Firestone and Air Lift Air Tubing
  • The standard air tubing diameter for Air Lift and Firestone air bag kits is 1/4 inch like the part # F2012 that you referenced. Firestone and Air Lift do not make a smaller diameter tubing at this time.
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  • Parts Needed to Carry Spare Wheel on Roof of 2008 Hummer H3
  • If you installed a Yakima roof cargo basket like the # Y07070 you could use the Spare Tire Carrier part # Y07076 to carry the spare on your roof. You would need a roof rack installed on your 2008 Hummer H3 as well like the Yakima round bar roof rack part # Y00408, # Y53TR, # Y03536, and # Y00224. We don't have a good solution to cover where the old spare was installed. If you make it near St. Louis MO we could help out with the install too!
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  • Recommendation for a Platform Trailer Hitch Mount Bike Rack to Clear the Spare Tire on a Hummer H3
  • Since you have 10 inches between the center of the hitch pin hole and the rear side of the spare tire on your Hummer H3, the Thule Doubletrack Pro XT Bike Carrier, # TH92BJ, is not a good choice. The Yakima HoldUp 2 Bike Hitch Mounted Folding Rack, # Y02443, measures 12 inches from the center of the hitch pin hole to the first bike tray, but 7 inches when folded. This rack will clear the spare tire but only in the towing position. I have included a link to the installation details and...
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