upper control arms

whats the best way to get the oem uca bolt off?
the one located on the axle side the hex head is so skinny i cant get a good grip on it.
trying to avoid stripping and sawing.

It takes a while, but you have to push it against the control arm to keep it pressed in place. You can either use a c-clamp, or every time it starts to turn, keep the bent part over the lip of the metal, so it stops itself from turning, if that made sense. It's hard the first time, but after that, it's simple to get them in and out.