Originally Posted by
ColonelJLloyd
How do you "re-square" the dropouts? Is this really necessary for a 2mm per side change?
There are tools made specifically for the job, similar to
this set and any decent shop would have a pair. It probably isn't enough angle change to worry about if you know the dropouts were right beforehand, but I'm of the old measure twice cut once school, and as long as I were doing the work, I'd check them before painting.