You are purchasing an M37 hitch receiver as seen in picture 2. It is used in conjunction with the standard pintle hitch that is already on the vehicle. With this design, you can choose to pull a pintle style trailer at the proper height for that style trailer or you can use the receiver for a ball hitch which is also at the proper height for a ball hitch type trailer. The hole for the pintle hitch shaft is 1.33”. The pintle hitch is not included. This is not guaranteed to fit all military vehicles. This receiver is double coated with Rust-resistant primer and rust resistant paint. Color: Black. Standard Color is black with rust resistant coating. Ball hitch is not included. Do not use a drop hitch unless you are towing less than 3000 pounds. Make sure to also purchase our hitch installation kit, also sold here .
Hitch installation hardware kit can also be purchased using the following link:
https://www.ebay.com/itm/HUMVEE-trailer-Hitch-Mounting-Installation-Hardware-Kit-Military-M998-16PC/153679228797?hash=item23c7feef7d:g:-bkAAOSwCMFZ6l6k