Originally Posted by Ricktwuhk

Those are 1 1/4 inch receivers. You can buy an adapter to go from 1 1/4 to 2 inch such as this. You can then use any 2 inch accessories, but note that any weight limits apply to the weakest point in the setup. Your 1 1/4 inch receiver is class 1 or 2, and may not be strong enough to support the dead weight of your vehicle, especially if not a straight pull. Should have rating stamped on it, or on a sticker.

Class I Trailer Hitch Receivers:
Towing capacities up to 2,000 lbs GTW (Gross Trailer Weight) and 200 lbs TW (Tongue Weight)
1-1/4" x 1-1/4" receiver hitch opening.
Works with only Class I accessories, such as bike racks, cargo carriers, ball mounts and tube covers
1-1/4" x 1-1/4" Class II accessories will not work with Class I hitches
Requires a drawbar or ball mount to tow a trailer; may be included or sold separately
Uses a 1/2" pin to secure ball mount into place
Manufacturer-recommended drawbar or ball mount should be used for each specific hitch
Will work with hitch ***** with 3/4" diameter shank
Available in square and round tube designs

Class II Receiver Hitch
Class II Trailer Hitch Receivers:
Designed for light-duty towing
Are rated up to 3,500 lbs GTW and 350 lbs TW
1-1/4" x 1-1/4" receiver hitch opening
Will work with Class I and Class II accessories, such as bike racks, cargo carriers, and tube covers
Requires a Manufacturer-recommended, hitch specific drawbar or ball mount to tow a trailer
A 1/2" pin must be used to secure the ball mount in place.
Drawbars may be included with hitch or sold separately
Available in square and round tube designs.
Will work with hitch ***** with 3/4" diameter shank

Class III Square Receiver Hitch
Class III Trailer Hitch Receivers:
Designed for trucks, vans and sport utility vehicles
2" x 2" receiver hitch opening
Rated up to 6,000 lbs GTW with 600 lbs TW
Allows for more gear to be carried or towed
Works with all Class III accessories, such as bike racks, cargo carriers, and tube covers
Class I and Class II (1-1/4") hitch accessories can also be used with an adapter
Ball mounts are sold separately.
Will work with hitch ***** with 1" diameter shank
NOTE: Most manufacturers call any hitch with a 2" x 2" opening a Class III hitch
It is not uncommon to see a 2" hitch rated at 3,500 lbs GTW called a Class III hitch
Available in square and round tube designs.

Class III Round Receiver Hitch
Class IV Trailer Hitch Receivers:
Designed for trucks, vans and sport utility vehicles
2" x 2" receiver hitch opening
Rated up to 12,000 lbs GTW and 1,000 TW
Allows for even more gear to be carried or towed
Works with all Class III and IV accessories
Class I and Class II (1-1/4") hitch accessories can also be used with an adapter
Ball mounts are sold separately.
Will work with hitch ***** with 1" diameter shank
Class IV hitch ***** require a 1-1/4" diameter shank

Class V Tow Beast Receiver Hitch
Class V Trailer Hitch Receivers:
Designed for heavy-duty trucks or vans to tow larger trailers
2-1/2" x 2-1/2" receiver hitch opening
Specially designed to handle heavy duty towing
With a weight distribution system you can handle up to 18,000 lbs with 1,800 lbs of tongue weight
Can use any class III or IV accessory with use of a reducer sleeve
Class V Ball mounts are sold separately.
Will work with hitch ***** with 1-1/4" shank

Originally Posted by kobayashi maru

So if you encounter a stuck person I would make them responsible for the hook up at their end by either having them do it themselves or authorizing your approach after being made aware of the risks. Sometimes a good deed can end up badly.

Originally Posted by Ricktwuhk

This is key. I would never help someone out without asking them to connect things or telling them I bear no responsibility for damage.

Neighbor a few years ago, clueless guy with way too much money and no common sense (ending up losing his very expensive home to the bank) bought a car at the Detroit Auto Show (i.e. saw the car, said I want to buy it). It might have been a big Mercedes, don't recall. Anyway, I came home driving my '98 Explorer and this idiot was stuck on a gradual incline (i.e. NOT a hill) in our development with this car with fancy tires that are meant to drive in the summer only. Sitting there and spinning, front wheels cocked sideways. I offered to help, but said I couldn't see where I would hook on. He promptly pulled a hook out of the glove box that screwed into a receptacle on the bumper. I said "ok, but you take responsibility". I had to tow him all the way to his house a mile in the development even over flat roads. He had no idea of the strength of the hook or its attachment, luckily you probably could have pushed the car with one hand given the flat road.

Always tell them they take responsibility.

Originally Posted by ALT5

You mean something like this. Made for a 2" receiver...

Originally Posted by Triton-SAS

This Truck pulling hitch

I have also made the one posted above too

Originally Posted by kobayashi maru

Not 100% sure from the pic but looks to me like a T-shaped 2" bar with a sliding ring that's height adjustable. Looks pretty HD though