Expert Answers about GMC Sierra Classic
- Can a 5th Wheel Trailer Hitch be Installed on a 2007 GMC 3500 Flatbed
- In order to install a 5th wheel trailer hitch on a flat bed, there are some alternate installation methods that must be followed. It will be a complete custom install that will need to be done by a qualified professional with experience doing these types of installations.
You can use # RP58430, but you will most likely need to provide your own hardware given that this is a custom installation.
The rails will need to be bolted and welding to a 1/2 inch steel plate. The hardware will need...
view full answer... - Trailer Brake Controller Port Location and Wire Functions on a 2007 GMC Sierra Classic
- If your 2007 GMC Sierra Classic 1500HD came with a factory installed 7-Way trailer connector, all you will need to do is to plug the # 3015-P wiring harness into the factory port on the truck. This port is located in an electrical junction box under the dash and to the left of the brake pedal. Remove the cover and plug in 3015-P into the open port on the top row, second from the left. I have included an FAQ article that should help.
If the truck did not come with a factory 7-Way, you will...
view full answer... - Brake Controller Recently Installed on 2007 GMC Sierra Classic not Getting Power
- There might be a missing fuse, or the final connection at the fuse block might not be complete. If you look at photo E in the FAQ article I have linked to, you can see the 30 amp fuse that activates the power feed to the controller. Between the power distribution box under the hood and the firewall, there should be a red wire with a ring terminal on the end of it. This ring terminal should be attached to the power stud closest to the firewall.
Insert the fuse if it is missing, or make...
view full answer... - Rail Instructions for the Reese Hitch and Rail Kit part # PS30129
- I've attached the installation and operating instructions for the Reese 5th Wheel Trailer Hitch w/ Round Tube Slider - Dual Jaw - 16,000lbs # RP30075 as well as a video where Jeff will review this hitch and walk you through using it. You'll also need the Reese Quick-Install Custom Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches # RP50064-58 to install this in your 2007 GMC Sierra Classic. This base rail kit is a custom fit and will use the holes already in your frame instead...
view full answer... - Can Topline Fold Down Truck Bed Expander BX4004-02 Be Installed Over Spray-On Tailgate Liner
- The Topline Fold Down Truck Bed Expander # BX4004-02 will work fine on your 2007 GMC Sierra Classic that has a sprayed-on protective coating on the tailgate. These spray-on treatments will not cause any real changes to the installation (not the way drop-in liners do; which require trimming).
I linked an installation video for you showing this Topline extender being installed on a 2010 Sierra. The truck in the video has a tailgate cover which our installer removed to trim it, but you will...
view full answer... - Can I Use A Bed Liner With CURT Quick Goose 2 Gooseneck Hitch # C630-652 on 2007 GMC Sierra
- The chrome collar and cap of the CURT Quick Goose 2 Gooseneck Hitch # C630-652, will be mounted flush to the steel bed of your 2007 GMC Sierra truck. The bed liner will need to have a 3-5/8 inch hole cut in it to fit around the gooseneck ball. You will not install the bed liner between the chrome collar and the steel truck bed, but around it.
CURT recommends removing the bed liner before installation and then replace it after determining the correct position for cutting the hole in it....
view full answer... - 4-Way and 7-Way Connector Needed for a 2007 GMC Sierra Classic Body Style
- Yes, the connections for the 4-flat connector are internal on the Hopkins 7 and 4 Pole Connector, # HM40975. Once you plug the factory connector into the Hopkins connector, the 4-way and 7-way sockets will have power.
I attached an installation video on a similar truck for you to check out. Since you already have a 7-way connector on your truck, you will simply need to disconnect the factory connector from the 7-way socket and plug it in to the Hopkins socket.
view full answer... - Brightness of Gustafson RV Ceiling Light w/ Glass Shade # 277-000400-331
- I spoke with my contact at Gustafson Lighting regarding the RV Ceiling Light w/ Glass Shade # 277-000400-331 referenced in your question. They do not measure the light output of their fixtures in candlepower, but she stated that this particular unit is a 6 watt, LED module that has an output of 300 lumens. This will provide a nice, bright light in whatever room the light is mounted in.
I have also attached a video demonstration on this product so you can see exactly how the light looks...
view full answer... - Diagram Showing How Trailer Brakes are Wired
- The brake wire providing voltage is wired in parallel, with one lead from each magnet being grounded to the trailer frame.
We have a great Wiring Help Page that shows a diagram, I will provide a link to it below.
view full answer... - Cold Air Intake and Picking Out Exhaust Setup for 2007 GMC Sierra Classic 5.3 liter V8
- For a cold air intake for your 2007 GMC Sierra Classic with a 5.3 liter V8 I recommend the Airaid MXP part # AR202-247 which has a really great design overall to give you additional power but I really like that it has a dry filter as well which is much easier to clean than an oiled one.
Now to pick out an exhaust system I need to know the cab style and bed length of your truck because that affects how long of pipes you'd need to have. So if you can get me that info I'll help you pick...
view full answer... - Should 2007 GMC Sierra Classic be Put in 4WD When Towing a Heavy Load Long Distance
- I checked out the online version of the owner's manual and it looks like for your 2007 GMC Sierra Classic then you want to use the Tow/Haul mode for heavy towing and/or shift the transmission to 3rd or lower if it is shifting too often. Aside from that though it doesn't state anything about 4WD so I wouldn't worry about it.
You may consider adding a transmission cooler like the Derale # D13502 to help keep your transmission from overheating and making your engine work harder. If you have...
view full answer... - Do All 6 Bolts Need to Be Used to Install the Curt Trailer Hitch Receiver Part # 13322
- You will need to attach and secure all 6 bolts holding the Curt Trailer Hitch Receiver part # 13322 to your 2007 GMC Sierra Classic. Not attaching all 6 bolts would void the warranty of the hitch and likely affect its capacities/performance. I recommend trying to bend the bumper back into place or buying a new bumper entirely as the two forward most bolt holes will need to be attached.
To ensure the new bolts do not cross thread while attaching to the weld nuts on the frame you will want...
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