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Expert Answers about GMC Sierra Classic


  • Why isn't Axle Spacing of Roadmaster Comfort Ride Listed
  • Since the install of the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers # RM-2460-2560 uses the existing hangers on the trailer for the very front and very back a set wheelbase isn't stated with this kit. Basically you'll end up having a very close wheelbase to what you have now.
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  • What Would Monitor of RVS Backup Camera RVS-83112 Look Like Used with 5th Wheel
  • I attached a picture that shows what the Rearview Safety Camera part # RVS-83112 would look like in a similar situation looking down from on top of a truck cab onto a fifth wheel hitch head. This would be very similar to an Andersen Ultimate like the # AM3200.
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  • What would Functions of Black and White Trailer Wiring Colors be
  • Typically white is ground and black is power based on standard trailer function/colors. With that said not all lights and trailer wiring follows the standard colors. You can use a circuit tester like part # PTW2993 to test the wires when the various taillight functions are applied though to verify for certain.
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  • Parts Needed to Add Brakes to 3,500 lb Trailer and Install Brake Controller in 2007 GMC Sierra
  • We can definitely get your trailer setup with brakes as well as install a brake controller in your 2007 GMC Sierra as well. Since we basically know you have 3,500 lb axles on your trailer what you'll need is a set of hub/drums like the part # AKHD-545-35-EZ-K for if you have a 5 lug bolt pattern (you should) and then for brake assemblies you'd want the part # 23-26 for the left hand side and # 23-27 for the right hand side. From there you'll need to run wiring up to the trailer connector....
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  • Can I Use The Curt Spectrum Dash Mount In My 2007 GMC 3500?
  • The Curt Spectrum # C51170 is definitely a good choice for your 2007 GMC 3500. This is a great proportional controller, and is more reliable than a lot of the wireless or Bluetooth compatible controllers that Curt makes. It is also a good controller to use with larger trailers as it can control brakes on up to 4 axles if needed. It will have a much cleaner look in the cab with the LED control knob. Your Truck should already have brake control wires run under the dash. You can use the...
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  • Trailer Hitch Recommendation for 2007 GMC Sierra Classic 1500
  • For your 2007 GMC Sierra Classic 1500 the hitch I recommend is the mostly hidden and higher capacity Curt Class IV part # C14332. This hitch installs easily, has more towing capacity than you'll need, and since it's mostly hidden looks better too. I attached an install video for this for you to check out as well.
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  • Where is Torklift Replacement Turnbuckle TLS9012 Made In
  • Torklift products like the part # TLS9012 are made in the USA.
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  • Recommended Brake Line Kit for Use With Titan Model 60 Brake Actuating Coupler
  • The brake line kit that would be best for you will depend the number of brake assemblies, the length of the trailer and whether the brakes are drum or disc. If you have a single axle trailer using drum or disc brakes, and the distance between the actuator and the rear axle is less than 18 feet, the Kodiak # 18SI-BLKIT would work great. The flex hose is easy to work with, and you'll have no worries about a kinked brake line. For a tandem axle trailer with an actuator to rearmost axle distance...
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  • Trailer Brake Controller for 2007 GMC Sierra With Factory Towing Package
  • Based on my research, your 2017 Rockwood A215HW does indeed have electric trailer brakes. So for your 2007 GMC Sierra, since you have the towing package with the factory 7-way, all you will need is a trailer brake controller and the correct wiring harness. For the brake controller, I highly recommend an option from Draw-Tite: - Brake EVN Trailer Brake Controller # TK63VR I love the Brake EVN because it is a great value with its unique combination of quality and cost-effectiveness. This...
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  • Firestone Air Bag Helper Springs for a 2007 GMC Sierra Classic 1500 Denali 4x4
  • For your 2007 GMC Sierra 1500 Denali 4x4 you can use Firestone Sport-Rite kit # AL59501 if the truck is a light duty. If it is a 1500HD then you can use # F2190. I also recommend a compressor kit # F2158 which will allow you to add or remove air from the air bags from the comfort of your truck cab.
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  • Do Westin E-Series Nerf Bars Come with All Needed Install Hardware
  • The Westin E-Series nerf bars # 23-1680 come with all of the needed hardware to install. All you need is basic hand tools and a little bit of free time for the install and you'd be set.
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  • Brekaway System Recommendation for Use with a Dexter Electric Over Hydraulic Actuator
  • The breakaway kit that would be on a drum brake setup is different than what would be needed with a Dexter Electric Over Hydraulic setup # K71-651. The correct breakaway you would need is the part # 34-285 which is designed for use with the Dexter actuator.
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  • Outriggers and 2 Step Recommendation to Replace Broken Step of 2018 Rockwood 2280BHESP
  • We have outriggers like the part # LC301704 which make installing pull out steps like the Lippert Steps part # LC432682 much easier. Your appear to be broken at the weld. The # LC301704 installs with included hardware.
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  • Best Under Bed 5th Wheel Hitch Install Kit for a 2007 GMC Sierra 2500 Classic
  • Yes, we do offer custom fit (no drill) under bed 5th wheel hitch mounting kits for your 2007 GMC Sierra 2500 Classic. However, please note that the no drill is in reference to the frame brackets because you will need to drill through the bed floor no matter what to install a 5th wheel hitch. I recommend the Under-Bed Rail and Installation Kit for Reese Elite Series 5th Wheel Trailer Hitches part # RP30061 which is essentially the same thing as the puck systems you see in the newer trucks....
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  • Availability Of 17' Ratchet Strap With J-Hook That Has 3333lb Rating
  • I may have an option for you, but we do not have a 17' ratcheting chain with a grab hook. Instead we do have the Titan Chain Ratchet Tie-Down Strap with Double J-Hooks - 2" x 20' - 3,333 lbs # TCLR22021-2 which is a 20' version of the # 317-310800 you were looking at and has the same 3333lb capacity. In addition we have a 20' Transport Chain w/ Grab Hooks # TCG70-8-20 which can be used with the Titan Chain Lever Type Load Binder # TCLB8. I included videos of the products mentioned for...
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  • Roof Rack and Bike Rack Recommendations for a 1996 Jayco Eagle Tent Trailer
  • If the roof of your tent trailer is a hard shell roof that is flat then roof rack # S80510 is a great option. But if the roof is curved there are no options. I do have another possible solution for you though. If you do go with the roof rack crossbars you will also need to add 4 roof bike carriers for the 4 bikes. You will also likely have to alternate the directions the bikes are facing to fit them all on the bars. A bike rack such as # TH598004 will fit the bars and you won't have to...
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  • Recommended Trailer Hitch Receiver For 2007 GMC Savana Van
  • For your 2007 GMC Savana Van I recommend the etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class IV - 2" # e98861 as it has a very durable matte black powder coat finish to resist chips and scratches, and has a 1000lb tongue weight rating and 10000lb trailer weight rating which is perfect for towing or carrying a bike rack or cargo carrier. Keep in mind this hitch and all of our available hitches will only fit the cargo and passenger models, not the cutaway chassis...
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  • Could Trailer Go From Tire Size ST205/90-15 to ST235/80R16
  • The ST235/80R16 has an outer diameter of 30.9 inches whereas the ST205/90D15 has a diameter of 29.5 inches so the diameters are pretty close. They would be close enough that there would be no issue going from one size to the other. For that you could use the part # LHACK133 for this size mounted on a wheel with a 8 lug bolt pattern or part # TA59VR for a 6 lug bolt pattern. Worth mentioning is that the tire size you have now isn't a standard trailer tire size and it's not recommended...
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  • Weight Distribution Hitch Recommendation for Towing 2010 Keystone Hornet 32RLS
  • The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. So assuming your tongue weight is...
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  • Derale Thermostatic Sandwich Adapter Recommendation for a 2007 GMC 3500HD Dually
  • I would recommend you get a Derale Thermostatic Sandwich Adapter # D25782 as it comes with multiple adapter sizes to ensure that you get the correct size for your application. I did some checking and it looks like you will need the 22 mm x 1.5 mm size for your 2007 GMC 3500HD. This is one of the included sizes in the # D25782. However, since you said you have a LBZ engine and I was under the impression that the 2007 trucks had the LMM engine the # D25720 would be a safe recommendation...
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