I have been looking for an aluminum radiator for my '88 for some time now and I'm not having much success. I find rads for 2.0 liter trucks in all aluminum and aluminum core plastic tank. The only rads I can find for the ext. cab 2 wd trucks with the 2.6 liter are Spectra Premium and the like made from brass and copper. Does anyone know of a source for an all aluminum direct fit rad?