[nassin31spr]

Go to your local hardware store. Some wheres that sells tools even Lowe's. They will have tap and die kits. Lows has some by size. Take your 1/8npt fitting with you and most hardware stores will point you int the right direction and the size to go with. You get the kit its a tap, handle, tap lube, drill bit. You take the caliper and clean it off. Put it on a level surface and very carefully drill it out with a high speed drill. Make it as straight as you can. Clean it out, get your tap kit, I use a easy tap lube or oil. Hold the tap firmly and begin threading it into the whole. Try to be aware of the depth and make sure you don't strip it out again. When you are at the depth you want back it out and clean it up and your good to go. I would advice stripping out some old calipers and at least try it once on another caliper before you try it on z32 calipers. Practice makes perfect but its actually really easy. Good luck.