X2 on tapping with a mallet with the bolt loosely installed.
Once you get the mirrors of and you go to install them on your relocation brackets, be very careful how much you torque the bolts. If you notice on the factory brackets, there is a key that slides into a keyway on the mirror post. This holds the mirror post in place so that the break-away feature functions properly. The relocation brackets I bought did not have the key and the instructions advised to tighten the bolt until the break-away feature functioned properly. Before that happened, I stripped the threads out of the aluminum mirror post.
Due to this issue, I bought a set of aftermarket mirrors to install on my relocation brackets, so now I just remove my doors with the mirrors on them and bolt the relocation brackets with the aftermarket mirrors already attached onto the A-Pillar. I hate that I have to install and un-install the relocation brackets each time I take the doors off or put them back on, but it beats stripping out the mirror post and visibility in the passenger's side mirror on the relocation bracket sucks with the doors on anyway.
I took the bolt out and placed the largest punch I could fit in there, then beat on it with a good size mallet. Give it a good coat of penetrating oil first and give it time to sit and soak in, it'll help a bit.
A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!