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I will qualify this post right from the beginning by admitting that I do not know if there is some obscure "standard" for "height of trailer hitch ball from ground", but if there is, our SSRs probably don't meet it!
I installed the SSR hitch bar the other day, and my local U-Haul lady installed the standard ball on it for me (I had "air wrench envy" as she got to use a BIG air wrench and an even BIGGER socket to properly torque it!!).
Then I attached my lightweight aluminum trailer that hauls my motorcycles, and guess what: it's nowhere NEAR level! The front is too high compared to the rear of it.
Now, since that trailer, and every U-Haul trailer I have ever rented, IS level when I attach them to my Mazda Tribute SUV or Ford Escape SUV, I assume that in a reasonably standardizd World, they SHOULD be level when atatched to the SSR!
I did some measuring.
From the ground to the top of the ball on the two SUVs, the distance is about 14.5 inches.
From the ground to the top of the ball on the SSR is 19.5 inches!
Now, I recognize that there is porbably a need for a "range" of acceptable ball height to allow for different vehicle shapes and ride heights, but 5 inches seems a little much.
What's more important is that with a standard drawbar / receiver hitch, you can CHANGE the height of the ball from ground by simply using a drawbar with a different "drop" dimension. Go to any trailering shop or U-Haul store and you'll find drawbars with a wide range of different drop (or if you prefer "rise") heights, so that you can get exactly the height you need to get a perfect level matchup with with vehicle and the trailer tongue.
This perfectly level matchup is pretty important, as any trailering technician will tell you that if your trailer is leaned forward (front end of trailer low compared to back), you have proportionately more weight on the hitch and vehicle than should be there, AND there will be a tendency for the trailer load to move forward. If the trailer is leaning backward (like on our SSRs), you are transferring proportionately more wieght onto the trailer axle and wheels, AND there will be a tendency for the load to try to move backward.
The load wanting to move backward is especially not good for two reasons:
1. If the load is something with wheels (like a motorcycle or ATV), it will be fighting its tiedowns trying to roll backwards, putting a lot of additional load on the tiedowns, and of course leading to catastrophe if it manages to roll off the trailer.
2. If the load manages to shift rearward enough, it creates a HIGHLY unstable situation in which the trailer will first fishtail and then, if conditions are right, break loose of the tow vehicle, or cause the tow vehicle to lose control.
Furthermore, if the trailer happens to be a tandem axle (not likely with a 2500lb or lower trailer, but possible), then the trailer tilting EITHER forward or backward can prevent proper weight distribution between the two axles; one axle will carry much more load than the other, with the amount depending on the suspension design and construction.
Because our SSRs use that custom "only one drop available" (It's actually not even a "drop" but rather a "rise"!!) hitch bar, we apparently cannot make the necessary ball height adjustment to get the correct height. I asked a specialty trailer builder about this yesterday as I was making the appointment to get my wiring connections added, and he admitted that HE ddn't know of any add-on device that would enable us to lower our ball height (The trailer's ball, not ours!) on our SSRs because of the non-standard construction of the SSR bar.
Anybody out there who is smarter about trailering than me or this trailer builder? Is there a solution that we are not seeing?
If not, be careful about renting or buying a trailer to tow behind your SSR. Every U-Haul trailer I have ever rented expects a 14" to 16" height to the top of the ball.
Jim G
I installed the SSR hitch bar the other day, and my local U-Haul lady installed the standard ball on it for me (I had "air wrench envy" as she got to use a BIG air wrench and an even BIGGER socket to properly torque it!!).
Then I attached my lightweight aluminum trailer that hauls my motorcycles, and guess what: it's nowhere NEAR level! The front is too high compared to the rear of it.
Now, since that trailer, and every U-Haul trailer I have ever rented, IS level when I attach them to my Mazda Tribute SUV or Ford Escape SUV, I assume that in a reasonably standardizd World, they SHOULD be level when atatched to the SSR!
I did some measuring.
From the ground to the top of the ball on the two SUVs, the distance is about 14.5 inches.
From the ground to the top of the ball on the SSR is 19.5 inches!
Now, I recognize that there is porbably a need for a "range" of acceptable ball height to allow for different vehicle shapes and ride heights, but 5 inches seems a little much.
What's more important is that with a standard drawbar / receiver hitch, you can CHANGE the height of the ball from ground by simply using a drawbar with a different "drop" dimension. Go to any trailering shop or U-Haul store and you'll find drawbars with a wide range of different drop (or if you prefer "rise") heights, so that you can get exactly the height you need to get a perfect level matchup with with vehicle and the trailer tongue.
This perfectly level matchup is pretty important, as any trailering technician will tell you that if your trailer is leaned forward (front end of trailer low compared to back), you have proportionately more weight on the hitch and vehicle than should be there, AND there will be a tendency for the trailer load to move forward. If the trailer is leaning backward (like on our SSRs), you are transferring proportionately more wieght onto the trailer axle and wheels, AND there will be a tendency for the load to try to move backward.
The load wanting to move backward is especially not good for two reasons:
1. If the load is something with wheels (like a motorcycle or ATV), it will be fighting its tiedowns trying to roll backwards, putting a lot of additional load on the tiedowns, and of course leading to catastrophe if it manages to roll off the trailer.
2. If the load manages to shift rearward enough, it creates a HIGHLY unstable situation in which the trailer will first fishtail and then, if conditions are right, break loose of the tow vehicle, or cause the tow vehicle to lose control.
Furthermore, if the trailer happens to be a tandem axle (not likely with a 2500lb or lower trailer, but possible), then the trailer tilting EITHER forward or backward can prevent proper weight distribution between the two axles; one axle will carry much more load than the other, with the amount depending on the suspension design and construction.
Because our SSRs use that custom "only one drop available" (It's actually not even a "drop" but rather a "rise"!!) hitch bar, we apparently cannot make the necessary ball height adjustment to get the correct height. I asked a specialty trailer builder about this yesterday as I was making the appointment to get my wiring connections added, and he admitted that HE ddn't know of any add-on device that would enable us to lower our ball height (The trailer's ball, not ours!) on our SSRs because of the non-standard construction of the SSR bar.
Anybody out there who is smarter about trailering than me or this trailer builder? Is there a solution that we are not seeing?
If not, be careful about renting or buying a trailer to tow behind your SSR. Every U-Haul trailer I have ever rented expects a 14" to 16" height to the top of the ball.
Jim G