I flipped the bolt an put a fully threaded bolt on the bottom. No dropping the y pipe needed. And i dont have fenderliner anyways so its a straight shot.Hi Joey,
Most welcome. While you could in theory put the lower bolt through from the outside, the upper... not possible unless you're willing to punch a hole through the inner fender or frame somewhere. But still, it is a shipload easier to just reach in and slide the bolts through then 'nut 'em up' afterwards. I guess an added bonus is if the bolt decides to seize or get mangled for any reason, it could be cut off a whole lot easier too. I seem to recall only needing to change the upper bolt to be about a half inch longer (I had something kicking around). Gives a guy a chance to clean up the alternator mount a little too and you get to 'pre fit' the alternator (push back the sliding bushing a spec) so that awkward one-handed install isn't so tiring.
Usually i have no problems swapping alternators but we tightened the top bolt too much cause we were confident about this 3l build.
Nut and bolt is a good idea. On my car I only tightened the top bolt snug, so i can break it easy with a stubby ratchet.