I have the 1.5" on mine too, but I wouldn't do it again. I would go with the 2.25" ball. There are so many combinations that your options are endless. Ram mounts are kinda like Lincoln Logs/Tinker Toys/Leggos all in one.
Looks down the left side at the Components. Endless. I have had good luck with gpscity.
Enjoy.
Dayton
I have the 2.25" and if I wanta go from the 997 to the 1197 I'm set.
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