Hydraulic fittings
https://www.etrailer.com/SnowSport/A60140.html
Today on our 2005 Honda TRX 350 four wheeler we'll be installing the Snow Sport Agri-Cover 2 inch ATV Trailer Hitch Receiver. Part #A60140. We need to first remove the two bolts that hold the original hitch in place. We'll be using a wrench and a socket to do this. We'll need to hold the nut on the underside as we turn the bolt from the top side. We'll go ahead and remove both of them and then we can pull the original hitch off. We will not be reusing the factory hardware. Next we'll take our new receiver and put the large bolt that's welded to it through the ball mount of our original hitch. We'll then put the 3/4 inch nut on finger tight.
Note: Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.