Just my report from the world of junk I've visited over the last year. I spotted an F35 in a Provo, UT yard and another in El Paso(in an oddball Saturn lg sedan!) but they are rare! F23 are around and obviously donors are drying, up as usually any yard I visited had only 1-4 units. Several were in 01-05 Cavaliers\Sunbirds with Eco Tec engine. Tucson, El Paso, Ft. Worth, Atl, more hits than misses, no F35 in yards. Search Cobalt forums or Comegetjoe in PA.
Last Summer, DF had F23's brand new, no info on FD ratio(I failed to ask), I believe they will add an LSD before shipping??, call DF for Prices and availability!! I believe I saw 10-15 units in their possession but stock changes.