I think you will find that those radiators are not drop-in relacements for the ST165. They may be listed for it, but are likely just GT or GT-S radiators that some clown assumed was the same for the All-Trac. Dimensionally they may fit, but will have single-row cores and will be missing the turbo coolant return nipple and missing the bung for the temp sensor in the bottom tank.
The only known aftermarket radiator for the ST165 is made by Nitoma (probably the OEM supplier to Toyota for these) and is most easily sourced through 935performance.