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Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter Installation

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How to Install the Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter


All right today we're going to install part number cab-c5g from Convert-A-Ball. First thing we do is inspect the trailer. We will make sure if there's a lube plate or lubrication disk that's already on the trailer. We'll remove it from the kingpin since we don't want anything between the adapter and kingpin. Then we'll install the locking collar, now when we first inspect the collar yo'ull see there's a white line located on it, we want to point that towards the very front of the trailer. We'll go ahead and push it into place and then we'll tighten down the three Allen head screws.

Now we'll tighten them down evenly and you want to make sure that the Allen head screw heads rest on the bottom lip of the trailer kingpin. It should go all the way in and be flushed with the surface of the collar; this should be even all the way around. We'll snug them evenly up first and then tighten them down. All right now we can go ahead and install the adapter, as this part you'll definitely need an extra set of hands to help hold up the adapter. We'll hold it up and there's a sticker on the adapter that points towards the front, we'll align that with our white mark that's on the collar. When we do this we'll make sure that the lock is facing towards the driver side of the truck.

We'll make sure that the adapter body is pushed up against the pin box and then once again tighten down the bolts, then torque them down as specified in the instructions. Once the bolts are tightened down, we'll go ahead and tighten down the jam nuts. All right at this point we can go ahead and take our truck and back it up underneath the adapter. We'll line up the adapter with the hitch ball and the truck. Then we'll go ahead and load up the trailer until its in a level position like as it would be towing. Then we'll loosen up the three adjustment screws and lower the ball coupler over the ball, we'll make sure it goes all the way down onto the ball.

All right next you want to make sure that there's no red showing between the ball coupler and the adapter body. We kept our adapter high to show the red part on the adapter. We'll go ahead and continue lowering the trailer until it's even. Once the trailer is level and no red is showing between the ball coupler and the adapter body, we can go ahead and tighten down the adjustment screws. Once again we'll tighten them down, then torque them down as specified in the instructions.

Next we'll go ahead and hook up the safety chains. Okay with that our adapter is already installed. That will finish it for our install of part number cab-c5g.

Info for this part was:


Test Fit:
Joe V

Video by:
Andrew K

Installed by:
Jeff D

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