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Trailer Hitch Installation - 2010 Subaru Outback Wagon - Hidden Hitch

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How to Install a Trailer Hitch on a 2010 Subaru Outback Wagon


Today, in this 2010 Subaru Outback Wagon, we're going to be installing Hidden Hitch Part Number 90208. This installation will also apply for draw type hitch, Part Number 36-493. The first thing we need to do in preparation to installing our trailer hitch is go ahead and lower the exhaust down. On single exhaust models this will be on the driver side. On dual exhaust models, obviously, we'll need to remove it off both sides. There are 3 hangers that we're going to need to remove the heats exhaust, also.

There's one here at the rear of the exhaust on the inboard side. One at the forward side of the exhaust on the outboard side. If you follow forward, just underneath the rear axle, there's a third hanger that we need to remove it off of. To remove the exhaust off of its hangers, we want to go ahead and spray the studs down with a lubricant, like a WD40. Then we can just take a pry bar, slide it in there and pry the hanger off of the stud. Before removing the exhaust off of its third hanger, it's a good idea to go ahead and put a support strap of some type around the forward side of the exhaust tube because once we do remove the exhaust off this third hanger, it could possibly fall and damage the system. With the exhaust lowered, we want to go ahead and remove the heat shield down off of the frame.

There are 4 fasteners holding the heat shield up into place that we need to remove the heat shield from. Again, you'll need to repeat this on the passenger side as well, if you have dual exhausts. Looking over here at the driver side, we're going to go ahead and point out the mounting holes that we're going to be using for our trailer hitch. You can see here at the rear side of the frame and more at the forward side of the frame, we've got 2 rubber plugs. We need to remove those 2 plugs. You can see now, we've got 2 existing holes at the bottom of the frame.

These are going to provide us 2 attaching points for our hitch. What we're going to need to drill an inch and 1/8 access hole here at the bottom of the frame, as well. The access hold that we want to drill is going to be 2 inches rearward of this existing well nut here, at the forward side of the frame. We just want to do that for the other side, as well. With the access holes drilled, we're going to go ahead and finish the carriage bolts and blocks into the frame. To do this, we're going to use the 7/16ths bolt leader that's provided with the installation kit.

What we want to do is take, and I'm going to start with that rear most hole here, we're going to take to feed the bolt leader through the attaching hole and out through the access hole. We'll next take the 1 x 2 inch carriage block and feed it onto the bolt leader, followed by the 7/16ths carriage bolt. Take and feed the block through the access hole, followed by the carriage bolt and pull them down into the place. We're going to take and do the same thing for the rear attaching point. However, for this one, we're going to be using the 1 x 3 inch block, instead. We want to go ahead and repeat that set up for the driver side, as well. All right, with all the hardware up inside the frame, we can go ahead and next hang our trailer hitch. To attach the hitch to the carriage bolts, we're going to use the conical toothed washers along with the hex nut. At the forward attaching point, however, we do want to put this flat washer in between the hitch and the frame. Now we've got the hitch up in position and the fasteners in place, we can go ahead and start torquing our bolts down. Before torquing the bolts, we want to make sure that the hitch is aligning with the existing weld nuts here at the bottom of the frame. Then we're attaching our heat shield. The heat shield will be going back up once we torque our bolts down. Next, we're going to go ahead and put the heat shield back up into place but before we do so, we do need to trim a section of it off to make clearance through the forward most attaching point for the trailer hitch. What we need to do is cut off the section at the foreword, middle portion. Then next, we'll go ahead and put the heat shield back up into place. With the heat shield back up, we can go ahead and put the exhaust back up in position. You can see here at the rear most attaching stud for the exhaust that it is now coming through the hole in the trailer hitch. With the exhaust back up into place, we just want to make sure to remove our support strap if we had put one up earlier and our installation will be complete. Now that we've got our hitch installed, we want to go ahead and give you a couple of dimensions that will help make choosing your hitch accessories a little bit easier. From the top of the receiver tube opening to the ground is going to measure 13-3/8 inches. From the center of the pin hole to clear the rear edge of the bumper is going to measure approximately 5-1/2 inches. This will conclude the installation of Hidden Hitch Part Number 90208 on a 2010 Subaru Outback Wagon. .


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