Can the rotors on a 99 silverado be resurfaced(turned) my neighbor a mechanic said no, that I must buy new ones

 

With the approved equipment, I believe they can be.

 

All Data had some info about late 90's model GM's concerning rotors.
If there was no grooving on the surface, or pulsating of the brakes when applying, then rotor's need not be turned. If there were grooves, (and I THINK it was up to .060 deep) then still no turning required. But they can be turned. The "slip-on" rotors don't give near as much material to work with as the old "hub and bearing" style rotors. Got to watch the "machine to" and "discard" specs closely.

 

I vote yes,only because I've done it many times

 

I guess I should have added that part myself..Yes, turn the rotors as long as they stay in specs...

 

Hence to the the original poster: Yes. Ask your source/neighbor where he got that from.

It might be that it's RECOMMENDED to pitch them over resurfacing in some cases but the specs are the guide there .