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Old 10-01-2019, 09:09 AM   #21
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Quote:
Originally Posted by featherbedder View Post
In early AS had ball height of 18 in. late 1960s AS had ball height of 21 inch then 70s changed back to 18 inch to clarify what AS used. Now I haven't any idea but 17.25 sometimes 17.5 is mentioned freq. for newer models.
With trailer level on level ground our 2017 20FC is 22.5", dealer said that manual has been wrong for a while and AS has not corrected it. Guess the obvious bottom line is just measure yours and proceed accordingly. If you still want more here you go http://www.airforums.com/forums/f542...ht-191855.html
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Old 10-01-2019, 01:07 PM   #22
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So if the hitch ball height is, for example, 19" when the trailer is level, how much is it when the trailer is loaded with, say, 1000 lbs evenly spread. Has anyone ever measured this?
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Old 10-02-2019, 11:57 PM   #23
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So, assuming you have a receiver hitch, buy a "shank" (forget the correct term) that allows you to adjust the height of the ball. Good investment for towing other trailers. IMHO with a WD hitch the #1 thing is to get the TV back to level. Single or tandem it seems like getting the trailer level is still a good idea. I mean, if your stopping for lunch it's nice to have flat table to eat at, right?
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Old 10-03-2019, 12:51 AM   #24
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Quote:
Originally Posted by WhereStream View Post
All requires some math, starting with this number: 17.25 inches.

That's the "hitch ball height." But what does that mean?

Is that the height of the top of the hitch ball, if the trailer is to be level?
According to Airstream from my owner's manual:

Measuring Hitch Ball Height
The proper height will vary according to the weight you
carry and the tires you use. However, checking the
height on your trailer is relatively easy:
1. With trailer parked on fairly level ground, measure
from ground to bottom of frame, front and rear.
2. Adjust front jack until measurements are equal.
3. Now, measure from ground to the inside top of ball
coupler. This figure is the hitch height. The hitch
ball is then usually set 1/2 to 1 in. higher, according
to the spring rate of your tow vehicle, to allow for it
to settle when the trailer is hitched up.
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Old 10-04-2019, 09:25 AM   #25
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Every how to adjust hitch height I have seen is, that is pub. or on internet states measure from ground to bottom of coupler lip not inside of pocket.
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Old 10-05-2019, 05:40 PM   #26
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Pictures

This has some illustrations that might be helpful but hopefully OP has more than enough answers on this LOL

https://www.truckspring.com/blog/pos...ler-ball-mount
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Old 10-06-2019, 06:43 AM   #27
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I ordered a new shank with a lot of drop potential ... alas, not enough.

It still leaves the ball almost 2 inches too high.

This was the deepest drop I could find.

I'm going to hook up the trailer and see how it goes, but ... may be in the search for yet another shank.
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Old 10-06-2019, 09:27 AM   #28
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I too set up my hitch. All the Airstream information said the ball height was 17.75". So I started there, and realized it's way off. More like 20".
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Old 10-06-2019, 09:54 AM   #29
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Quote:
Originally Posted by SYC2Vette View Post
This has some illustrations that might be helpful but hopefully OP has more than enough answers on this LOL

https://www.truckspring.com/blog/pos...ler-ball-mount
That's a good explanation. Thanks for the link.
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Old 10-06-2019, 12:52 PM   #30
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Trucks are getting really high. For my Ram 2500 I have a ball mount with a 7 3/4" drop for towing when the trailer and truck are empty, and another with a 6" drop for towing when loaded. I will probably have to get a 4" drop soon because the wife keeps loading the trailer with all the heavy stuff up front.

A straight ball mount only costs about $50. Adjustable mounts are quite pricey. I'd rather use a non-adjustable ball mount - simpler and more sturdy, and cheaper even if you need 2 or 3 different ones.
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