Hey, I'm not a vendor, but found a great deal on an all aluminum core radiator for XJ's. They run about $200, which is much cheaper than Be-Cool's $500 ones. They are single core with 1 3/8" tubes. He sells dozens of these for XJ's and Wranglers. You can visit his website at http://www.alumrad.com. Bryan is the owner and is very knowledgeable. I just bought one and will install it next week (March 5, 2004). They are located in Arizona.