This is a great guide! I also went the Curt way. Once I was inside, I couldn't remove the studs off my abosorbers...they were welded in. So I had to finish the install without reinforced bolts. I'm only using it for my bike rack and never intended on towing anything so I'm fine...I wouldn't dare tow anything without replacing the studs.

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'10 X6 5.0i with 7RR Performance Package
'04 X5 4.4i with staggered 20" #168