Trying that helpful suggestion, I was surprised the base 2WD vehicle is no different from the 4WD SR5 as they have no options other than 97 4runner.
1997 Toyota 4Runner Vehicle Accessories | etrailer.com
That gives a half dozen options:
1. Trailer Hitch
2. Gooseneck Hitch
3. 5th Wheel Hitch
4. RV Hitch
5. Front Receiver Hitch
6. ATV Hitch
Is it the "Trailer Hitch" is what I need to just tow "something" (I don't know what yet, but nothing special) and for adding a trash-can hitch to the back?
Assuming I need a "Trailer Hitch" then this is the link of options
1997 Toyota 4Runner Trailer Hitch | etrailer.com
I never heard the words "Class 3" which, looking them up, I see it's
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1. Class 1 1.25-inch receiver tubes 2,000 pounds
2. Class 2 1.25-inch receiver tubes 3,500 pounds
3. Class 3 2-inch receiver tubes 8,000 pounds
4. Class 4 2-inch receiver tubes 10,000 pounds
5. Class 5 commercial duty hitches 20,000 pounds
I see why now, given it's where the 2-inch standard "receiver tubes" start, why people recommended "class 3". But what's a receiver tube?
Apparently this is a receiver tube.
https://www.harborfreight.com/class-iii-18-in-x-2-in-standard-receiver-tube-69815.html
It looks like it bolts onto the frame somehow where the pictures seem to show it bolts on at both sides along the side of the frame. Is that right?
Phew, you are starting from the beginning here... Ok...
A true base model 4Runner is a 4 cylinder, which is rated to tow 3500lbs. A V6 is rated to tow 5000 lbs, whether 2WD or 4WD. Small utility trailers, etc. will all be below 3500lbs. Towing RVs, car trailers, etc. is when you will get above 3500lbs.
Regarding those towing options:
1. Trailer Hitch - this is a standard 'bumper-pull' trailer hitch, what the 4Runner will use.
2. Gooseneck Hitch - applicable to (full-size) trucks only, a 'ball' in the middle of the bed
3. 5th Wheel Hitch - applicable to (full-size) trucks only, a small plate in the middle of the bed, a smaller version of semi-truck and trailer attachment
4. RV Hitch - for RVs (not a 4Runner...)
5. Front Receiver Hitch - give you the ability to mount hitch-based accessories on the front (bike racks, etc.)
6. ATV Hitch - only for ATVs
For you, only the first item is applicable.
2" receiver tubes are most common, both for pulling trailers and for attachments that go in them. Most of those are class 3. You have no need for class 4, since the 4Runner can't handle that and there are no off-the-shelf options for the 4Runner that are rated that high. 1 1/4" (class 1/2) are undersized for the 4Runner capabilities.
A receiver tube is the part that receives (!!!) the ball mount or hitch accessory (bike rack, cargo carrier, etc.). It is just one component of the hitch that you will purchase to bolt on to the frame of your 4Runner. The reciever tube you linked from Horrible Fright is a component used to MAKE (ie, weld) a complete hitch together in a custom application. Not something you need, since there are AT LEAST 4 complete bolt-on hitch options for your 4Runner that you can still buy new (and two versions of the OEM hitch you can buy used). The OEM hitches are tucked back even with the bumper but sit lower, the aftermarket options are 2-3" higher but stick out. Check out the e-trailer options (put in your exact vehicle and see the hitch application pictures)
Sounds like its time for you to look under your 4Runner. There will be tow tie-down loops bolted to the frame at the back. Those each have two welded nuts up in the frame that will be used to bolt on a hitch, along with some extra holes are used with a bolt and nut combination to hold it to the frame.
Plug-n-play harnesses to require you to get behind some interior panels, but you can drop the harness down out the bottom of the 4Runner though slits in the square plugs under the lower trim at the cargo area opening. That's where the factory runs the wiring. You can see the harness drop down into the square plug on the left in this pic (some harnesses go down on the right, follow the specific directions for your unit).
If you are towing a trailer, you need to know the ball-size it is expecting (1 7/8", 2", 2 5/16", etc.) and the wiring connection. 4-pin flat for non-brake applications and 7-pin round for most braked applications. If you tow something with brakes, you will also need a brake controller and some extra wiring beyond the lighting connections provided by a 4-flat connector.
Watch as many videos as you can and search google for anything that is not 4Runner specific. Towing is towing once you get to the standard receiver opening and wiring...
Pretty soon, you'll be doing sketchy towing like the rest of us!
Or less-sketchy things:
-Charlie