I'm looking for an a/c condenser for a '85 charger. Rock auto site says it's a 3340. The ones I've seen on eBay say it's a 3344 , like this one. http://www.ebay.com/itm/PERFORMANCE-...c07d2c&vxp=mtr . I'm wanting to buy to this 3344 Performance Radiator brand. Which p/n is right ?