Quote:
Originally Posted by wparsons
You're not hearing conflicting opinions, you're hearing different options. There's a subtle, but very important difference.
A 16mm lobed bolt is one option, the other is a 14mm solid bolt. THAT's why what kind of bolt they're talking about matters. Context matters, A LOT.
If you spent half as much time actually reading and comprehending the information already available as you do making a post for every single question you wouldn't need to be asking so many questions (or end up arguing with people trying to help you).
Literally every question you've asked has already been answered on here already, or is information easily available with a quick google search.
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Actually, although you are correct about the 14mm solid/"crash bolt", I think what is being discussed are the lobed bolts, and whether you need a 14mm or a 16mm lobed bolt.
If you want to adjust camber, the most common way is to use either a 14mm crash bolt in the upper hole or a 16mm lobed bolt in the top hole as you suggest.
It is also possible to use a 14mm lobed bolt in the lower hole and retain the 16mm stock bolt in the upper hole. Unless you have unusual circumstances, you do not want to use the 14mm lobed bolt in the upper hole.
For the maximum adjustment you can use the 14mm lobed bolt in the lower hole and either the 16mm lobed bolt OR the 14mm crash bolt in the upper hole. I do not recommend using the 14mm lobed bolt in the upper hole if you are also using one in the lower hole. The reason being that the 14mm lobed bolt is not as strong/durable as the 14mm solid bolt.
Generally it is not recommended to use both the upper and lower holes for adjusting camber unless it is a track car with regular inspections.
The reason you have conflicting input on 14mm vs 16mm lobed bolts is that some people prefer using the lower hole to adjust camber for technical reasons beyond this discussion. Either hole will work.