We actually drilled out 2 bigger holes and tapped them, didn't notice it until we tried to put the bolts in, and lucky he had some m8 14mm bolts laying around that worked.
Yea, my buddy and I that were installing we were like wtf why doesn't the tap go in. And finally I looked at the tap size on the instructions and googled and hell had to run to AutoZone.
Check the tap in the kit, mine was the wrong size and I didn't realize it was wrong and drilled one hole bigger. Had to run to locally and get right size.
I just received mine yesterday, but I won't be home to install. Package was pretty beat up and UPS just left them didn't even give me a chance to check the box they were gone back in their truck fast. I did snap photos just in case something is missing or damaged.