Hey folks, I have a Toyota 4Runner that has a 2" hitch. Someone gave me a Yakima Holdup 1 1/4" bike rack. The owners manual states not to use an extension adapter for the rack. I am not certain why and think it is for litigious reasons than engineering. So here are 2 adapter, one extender and one not. I don't mind the non-extender version just wondering how difficult it is to match up 2 sets of holes? Plus the rack comes with a bolt to tighten to the hitch, would that work with both adapters?

extended:
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Non-extended: