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Old 10-13-2022, 04:36 PM   #1
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Trailer hitch ball size

Hey All. I purchased a 2016 Flagstaff Classic T12RB (17') from a private party. I asked them to confirm what size ball I need to tow it with before I do the 100 mile drive to pick it up. She said there was nothing printed on the coupler to confirm the size. Does anyone know what size ball this particular camper takes? Is there any other way the owner might confirm the size for me?Thanks....
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Old 10-13-2022, 04:57 PM   #2
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It's printed behind the coupler. She probably looked at the wrong area. Should be a 2in ball.
Or ask her what size ball is on her tow vehicle.
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Old 10-13-2022, 05:00 PM   #3
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I would think it would be on the hitch or the ball they have been using. See the link with descriptions and photos. You might send the link to them.

https://www.etrailer.com/faq-hitch-ball.aspx

I searched specifications for year and model.

https://www.rvusa.com/rv-guide/2016-...-t12rb-tr30741

Based on gross weight, it could be 1-7/8. I have changed couplers to 2” so as to only use one receiver for boat and utility trailer. If I couldn’t get them to provide confident information, I’d take a 1-7/8 and 2” ball that fits your receiver (observe shank size), along with a wrench for installing. You could return the unused ball.
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Old 10-13-2022, 05:07 PM   #4
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2".

https://rvshare.com/rvs/details/1562989

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Old 10-13-2022, 05:46 PM   #5
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Why not just buy a 2" and a 2 5/16" ball from WalMart? I would bet 2". Take the wrench(es) with you to change the ball, but I would install the 2" ball first. See if the coupler will accept the 2 5/16" ball by hand, and I bet it won't. Then return the unused ball to WalMart.

BTW, the coupler size MUST be stamped into the coupler. The current owner just does not have good enough eyesight to see it.
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Old 10-13-2022, 07:06 PM   #6
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My 2021 T12RB takes a 2” ball. Would be surprised if any A-frame out there used anything different. Also need to consider how much rise/drop you’ll need on your draw bar. Ours is about 19” from ground to top of coupler (ours is stock height, some people add lifts to the trailers which would change that).
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Old 10-13-2022, 07:59 PM   #7
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Thanks all for the responses. I'm guessing 2" also, but will take a 2 5/16 along for the ride just in case someone changed out the coupler. I did suggest they look at the ball on their tow vehicle but they already sold it. She did send me a photo of the coupler with the stamps on it, but for the life of me I also couldn't see a ball measurement stamped into it...
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Old 10-13-2022, 08:23 PM   #8
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Quote:
Originally Posted by steve1952 View Post
Thanks all for the responses. I'm guessing 2" also, but will take a 2 5/16 along for the ride just in case someone changed out the coupler. I did suggest they look at the ball on their tow vehicle but they already sold it. She did send me a photo of the coupler with the stamps on it, but for the life of me I also couldn't see a ball measurement stamped into it...
They would have had to cut off the front of the A-frame, to change out the coupler. The size is stamped on the A-frame metal, not on the actual coupler.

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and Zoe the Wonder Dog(R.I.P.)
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4pt Equal-i-zer WDH and 1828lbs of payload capacity
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Old 10-13-2022, 08:41 PM   #9
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Personally, if the owner is that unknowledgeable pertaining to her trailer, I'd move along and find something else. If someone asked me about a trailer that I was selling and I didn't have the answer right off, I'd certainly find out and get back to the potential buyer. Something doesn't seem right.
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Old 10-13-2022, 10:29 PM   #10
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You want a 2" ball on a hitch that sets the top of the ball at 19". Do not waste your time or money with a 2 5/16" ball. Your tow vehicle needs to be wired with a standard 7 pin wiring harness. Good luck and enjoy!
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Old 10-14-2022, 07:42 AM   #11
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Thanks again for all the responses......
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