Got these 5th gen setup parts and I’ve been told I need to ream the hole out in the rear for these shocks to fit. My questions are where do I stop reaming the hole ( what is the fitment supposed to be like) and do I or will this extra piece on the frame come off? I seem to be hitting it in these photos just on the left side. Anyone who has done it or maybe pictures/ extra knowledge would be very useful. Thanks