Re: radiator help
Just about any part that an auto part store or online retailer lists as compatible will work. They're all pretty much the same: aluminum fins with plastic siding. The only thing to watch out for is the inclusion of a transmission cooler, in case you have an automatic. That is integrated into the radiator siding, so don't forget about it.
2003 Ford Ranger XLT
2.3L I4 Duratec DOHC, 5R44E 5-speed auto, RWD, 7.5" Open w/ 4.10 Ratio, Gibson split-rear catback
Sonic Blue Pearl with dark gray trim