Plastic tanked radiator....

Have not seen an all brass one.....oem replacements are over $200....have seen an all aluminum one...I ain't dropping close to $800 on a radiator...
PM me details on truck and on Monday I will have J call our rad guys and see what we can do. He drove Duramax for a few years so knows them quite well and we get some smokin deals on rads. Evan