MW3Designs
Full Access Member
Not to revive an old thread, but I just purchased my LR4 and grabbed a OEM hitch adapter on eBay. I installed it to check fitment and I am experiencing the same issue. It seems that the pin doesn't go in very far, maybe half the thickness of the hole that's there, and its definitely not sticking out the back side. Looking at the pin there are wear marks on it that seem to look like that's where its supposed to sit, not all the way thru the hole. The adapter snaps into place, and the green handle is in the exact position as the pics in this post. I have some time before summer gets here, my towing season.