We just bought a 2010 sequoia w the tow package, but when we put in the 2" ball mount- it's loose. The hitch opening is about 2 1/8" wide which causes the ball mount to have extra space and it's not a tight fit. Does anyone else notice this problem? (We've asked around and nobody makes anything bigger , just the standard 2" ball mount.) is it ok to have that extra space around the ball mount or should it fit snug?

Mine is very loose fitting as well. Etrailer.com sells an attachment to tighten it up. It works well except that it comes loose now and then. It looks like a u bolt with a half round bar across the top. Two nuts tighten it up. We tow a 4,000 lb travel trailer.