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Today, in our 2008 Toyota Sienna, we're going to take a look at, and show you how to install, the Draw-Tite Max-Frame Class 3 trailer hitch receiver. This offers the two inch by two inch opening. It's part number is 75237. Here's what our hitch is going to look like installed on our vehicle. We're going to have a cross tube that's going to run all the way across the rear of our vehicle here. It kind of beefs up the look of it. We're going to have our receiver tube opening here.
This is going to be one of the most visible parts. You can see we've got our two inch by two inch receiver tube opening. This works out really good for bike racks, cargo carriers, ball mounts, whatever it is that you'd like to put in here, they should make a fit for the two inch by two inch hitch. You can see our plate style safety chain connection points down here. Those are really nice and open, so whatever safety chain type you have should connect pretty easily. For securing your ball mounts, bike racks, or cargo carriers, whatever you choose to put in here, we're going to have a larger pin hole towards the front of the vehicle.
That's normally used to secure all of our items with. The smaller holes, here to the rear, that's for use with that j-pin stabilization system. Another nice feature is going to be the tab welded onto the side here. That's going to give us three pre-drilled holes for mounting any brackets we might want to use for wiring. Our hitch is going to offer a 675 pound tongue weight rating. That's going to be the maximum downward force we're going to put here at our receiver tube opening.
It offers a 4500 pound gross trailer weight rating. That's the total weight of our trailer and anything that we load up on it. Now, of course, we do want to look into the owner's manual of the Sienna, see what it's tow ratings are, and we'll go off of whichever of those numbers will be the lowest. A couple of measurements that will be helpful in selecting your ball mount, bike rack, or hitch cargo carrier, will be from the ground to the inside top edge of the receiver tube opening. We've got about 11 and a half inches. Then, from the center of the hitch pin hole to the outermost edge of our bumper, it's about four and a half. To begin our install, we need to get our exhaust down and out of the way.
What we're going to do is just take a support strap, you can use wire, I've got a cam buckle strap here. Just going to run it from side to side underneath the exhaust. We'll tighten it up just a little bit to give us some support, that way we can control how far down our exhaust comes once we remove the hangers. We'll have two hangers here in the front. We've got one here on the driver's side and one here on the passenger's side of the pipe. We want to spray those down with some lubricant and then we'll have one right back here. Use a pry bar, or a screwdriver, whatever we've got handy. This should give us enough room to get in there and work. Now we can take a look at our attachment points. We're here on the passenger side. This was our rear-most exhaust hanger. Just behind that, we're going to have a weld nut here in the frame. Then we'll have two more, one here and one here. You can see these have some rust and some corrosion in them so we want to use some penetrating oil. Really want to spray it up in there. Now, we're going to take our nylon tube brush. We want to clean our threads out really well so our bolts will thread into them. This is part number 814092. Now, with an extra set of hands, we'll get our hitch raised up into position. We're going to take our provided hardware, should be our bolt plus a lock washer and a flat washer. We'll just thread that right into our weld nuts. With one started on each side, our hitch will hold itself into position while we get our other ones started. Now we'll take a quick look just to be sure our hitch is centered with our car. We're ready to snug down our fasteners. Then we'll torque them to the specifications listed in our instructions. With everything torqued down, we can get our exhaust back in position. With our exhaust back in place, that completes our installation of the Draw-Tite Class 3 Max-Frame trailer hitch receiver, part number 75237, on our 2008 Toyota Sienna.
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