Trailer Hitch Installation - 2005 Pontiac Montana

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How to Install a Trailer Hitch on a 2005 Pontiac Montana

Today on this 2005 Pontiac Montana, we will be installing Hidden Hitch part number 87410. This installation will also apply to Draw-Tite hitch part number 75278. We are underneath the vehicle looking at the passenger side, you can see we have an exhaust bracket that is held into place here with two bolts. We are going to be removing those bolts and using the weld nuts in the frame as two attaching points for the trailer hitch. With this being a short, wheel base model, we actually have a third weld nut here, just forward of the two that were holding the exhaust in place. Except we are going to use that as our forward most attaching point :36

Moving over to the driver side, you can see we have the same three weld nuts here, we are going to be using the two here for the attaching points for the hitch. On the passenger and driver side of the vehicle we will be drilling 1/2 inch holes at the rear side of the frame, using the hitch as a template. It is a good idea on any vehicle that has seen at least one winter to thoroughly to clean the weld nuts before we attempt to put the hitch up into place. To accomplish this, we are going to be using a spray lubricant, like a WD-40, then take a wire brush and run it inside the weld nut a few times, that should help loosen up that road grime and debris that gets stuck up in there. 1:09

We are going to go ahead and put the hitch up in position. We are going to be using the new 10 millimeter bolts that are provided with the installation kit. I do want to note here on the passenger side that when we attach the weld nuts, we want to put the hitch up, but we also need to put up the exhaust bracket up as well. When drilling my holes I am going to start with ah 1/2 inch drill bit and then go back and enlarge them with a 1/2 inch bit to the size they need to be. Moving on to the forward attaching point, we are going to be using the handle nut. What we are going to do is take and feed it through This access hole here on the side of the frame. The idea is to get the weld nut portion of the handle nut inside the frame and over the drilled holes at the rear attaching point. What I am going to do is manipulate the handle nut and insert it into the frame. You can see have it aligned directly over the hole in the frame. From there we are going to take the 1/2 inch hex bolt, along with another lock washer and thread that into the handle nut. We want to repeat that set up for the rear attaching point on the passenger side, then we will start torquing our bolts down. 2:10

When torquing the bolts down, you want to make sure you verify with the directions the specific torque rating for each individual bolt. With all the bolts torqued down our installation is complete. Now that we have the hitch installed we are going to give you a couple final installed dimensions which will help make choosing your hitch accessories a little bit easier. From the top of the receiver tube opening to the ground measures 11 inches. From the center of the hitch pin hole out to the edge of the bumper is approximately 6 inches. This will conclude the installation of Hidden Hitch part number 87410 on a 2005 Pontiac Montana.

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Test Fit:
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