Yes, It's in the middle of my instructions
"Lift rubber boot on top of rack and unbolt the 11mm holding the telescoping shaft to the rack. Wiggle it free"
I've always had to use a prybar from underneath to pop the boot off the rack and then push it upwards. I've always gone through the drivers side wheelwell to get to the bolt. Kinda a pita. I had to turn the wheel slightly to get the bolt head to face outward and used my 2' extension to get to it. Hardest part is getting the stupid boot up far enough as it's not real flexible.