I have a 2015 Chevy Silverado that has a towing trailer receiver already installed. There is a (what appears to be) a 2 cylinder that lines up with a knock-out ...

I have a 2015 Chevy Silverado that has a towing trailer receiver already installed. There is a (what appears to be) a 2" cylinder that lines up with a "knock-out" on the OEM bumper. I can't seem to find anything that would work with what I already have, and the dealer wants $800 to install a hitch (which they probably have some $5 part that they install). Is there anyone on this forum that has any idea if there is a ball that I can buy online that will fit? I know I can just buy an aftermarket receiver, however, I'm trying to keep from having to remove the receiver already installed to install another one.

Personally, I would never to from the bumper directly, but I know some have. OEM bumper obviously not rated nearly as strong as an actual hitch, but I guess for a short distance trip with something small-ish, you could maybe throw a ball on the knockout and give it a go.

You mention you already have a towing receiver installed...I may be nomenclature ignorant to understand, but can't you just buy a hitch and slide it, hitch pin it and you're good to go towing from frame vs bumper?

Just change out your current receiver to fit what you need, It cant be that difficult.

I'm not sure I understand the need either, but something like this? https://www.amazon.com/Reese-Towpower-7 ... 000CPI6R2/

"I can't seem to find anything that would work with what I already have..."

You can't find a hitch to fit the factory receiver?

It appears the OP may be suffering from nomenclature confusion, (or maybe we all are.)

So....

The "receiver" is the square, just an RCH larger than 2" hollow tube under the bumper that accepts/receives the "ball mount." It's what you see in this link on the Curt Tow Hitch from etrailer. (And BTW, Curt makes them for GM.)

https://www.etrailer.com/Trailer-Hitch/ ... =201524112

The "ball mount" is a short or long piece of square tubing, that has the capability to have installed on the end of it, tow balls of various sizes; usually 1 7/8, 2 or 2 5/8, that slide into the receiver (like sex,) and is held in the receiver by means of a 5/8" pin and retaining clip.

What I think the OP is talking about is that there is a slight perforation or ring in the plastic fascia directly behind the center of the license plate, and of you look underneath it, there is a corresponding round hole cut in the bumper, which common sense might dictate you could install just a tow ball, like we all did " back in the day."

The short answer here is: Don't do it, no, never.

Buy a tow hitch and install it to the frame. The bumper is made out of little more than chicken scratch!

Class dismissed!

I understand I am not explaining it too well...so I will post pics when I get the chance. But I do want to address the "bumper" comment. The OEM hitch is already installed and joins at the bumper (like a aftermarket hitch, it's attached between the L and R frame sides). The bumper has a plastic cover that has the circle that lines up with the hitch under it. Where the hitch lines up with the "cutout" on the bumper, there is a 2" cylinder. I have never seen anything like it, and would prefer not spending the money and time, especially to remove what's already there and replaced it with something else. I do, however appreciate the quick replies. The sarcasm? Not so much.

the two inch cylinder you describe is what seems to be the odd component here. I think it will help a lot when you get a chance to post a pic

Jim,
Is the 2" cylinder round or square?

Chevron, it is round. It doesn't protrude through the back like a normal hitch receiver, it's vertical. I meant to get pics last night, but my phone died as soon as I turned the camera on. And yes it IS an odd component. GOAT721 I had never witnessed a hitch like this before. Having my son send me pics...as soon as the lazy ass gets up.

Once we get a pic, I'm certain we can give you an answer or some good advice... sarcasm comes free here..lol, even if not asked for... But I did clean up at least one useless comment, so hopefully we'll stay on track and help you get this figured out.