Is this nuts?
I know it's covered on Sheldon Brown's site. The problem is you can't get a drill between the seat post and the underside of the brake boss.
I do have a hand boring tool. I beleive I can get it in there and might be able to hack away enough steel to stuff a new DP caliper in ( I currentky have cheap single pivot sidepulls; after switching the front to a DP I am really hating the lousy non-centering rear sp).
fwiw it is an 86 Trek road bike, Tange straight gauge cro mo seat stays.
My main concerns are will this weaken the stability and stiffness of the rear brake and will it make a difference if the hole I bore out is a bit out of true round?
Some folks advocate using the front brake on the rear and using the rear in front by simply sticking the recessed nut inside the bottom fork opening (tighten it inside the steerer tube by putting the allen wrench through the back of the fork). Is this a safer bet?
If these are both ill-advised can someone PLEASE help me center this %#*%^() SP brake?????