Look through your phone book or go online to find a rental company near you that rents trailer hitches.
Call or email the company that suits your needs. Tell the representative the year, make and model of the tow vehicle, what you intend to haul, and any other specifics the rental company needs. You may be required to know the trailer's hitch ball size and weight.
Make an appointment to bring the tow vehicle to the rental company. A representative from the company will fit you with the correct type and size hitch according to your tow vehicle and load.
Visit your local rental store if you don't want to call. Ask if you can rent a trailer hitch. The employees will tell you what types are best for your vehicle and towing capacity. They may even help with installation.
Read the rental agreement. Sign it if you agree with it. You'll likely have to show your driver's license and vehicle insurance card before you're given a hitch. Pay the rental price and be sure to return the hitch on time so you don't incur any additional fees.