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Trailer Hitch Installation - 1994 GMC Van

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How to Install a Trailer Hitch on a 1994 GMC Van


Today on this 1994 GMC full size van, we are going to be installing Draw-Tite hitch part number 75121. Before we get starting installing our trailer hitch we are going to go ahead and give you a couple of final install 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 12-1/2 inches. And from the center of the pin hole, to clear the rear edge of the bumper is going to be approximately 2-1/2 inches. We are going to start off underneath the vehicle here with our installation. And we are actually looking at the driver side frame rail. We are going to point out the mounting locations for this trailer hitch. Attached to the bottom of the frame, as well as the bumper, is the bumper bracket. And there is a bolt holding it into the bumper and two into the frame. We will actually be removing the bumper bracket from not only the driver side but from the passenger side as well. And the hitch will actually be replacing it. 0:46

Once we do remove the bumper bracket, we will actually be reusing the existing hardware on the vehicle. And, if you continue forward on the frame, just forward on the angle of support, there is an existing hole here and that is going to provide our forward most attaching point for the frame. Into that existing hole, we are actually going to be fishing the carriage bolt and block assembly that is provided with the installation kit. And we are actually going to go ahead and do that first. We are going to go ahead and take the provided bolt leader and we want to take the threaded end here. Insert it in the bottom of the frame, through the existing hole and back out this large hole in the frame. We will next take our block and go ahead and slide it on to the bolt leader. And then we will take the carriage bolt and we will wrap the threads of the bolt leader around the threads of the carriage bolt. So from there, we just want to take the other end of the bolt leader and go ahead and pull the block and carriage bolt down into place. Alright, and then we will just go ahead now and move on to removing the bumper bracket. Depending on the age of your vehicle, the bolts that are attaching the bumper bracket to the bumper could have a considerable amount of rust or road grime built up on the nuts. So it is a good idea to thoroughly soak and clean those with a spray lubricant, like a WD-30, before attempting to remove a nut. 2:07

With the passenger side completed, we can go ahead and put the hitch up in position. To the bottom of the carriage bolt, we are going to add the conical tooth washer, along with the lock washer and hex nut. From there we will just continue rearward where, again, we are going to be using the same bolts that we had taken out of the frame earlier. Connecting the attaching point to the bumper with the installation kit includes a flat washer. And we are going to put this on as well as a new nut, which is a locking nut. Now that we have all of the hardware up into place and tightened down, we are going to go back through now and torque each one of the bolts down. You want to verify with the directions the specific torque rating for each of the bolts. And then with our bolts torqued down, our installation will be complete. This will conclude the installation of Draw-Tite hitch part number 75121 on a 1994 GMC full size van.


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Zack K

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