I just bought a 2007 F53 Stripped Motorhome Chassis. A piece of metal from the road busted the bottom tank of the radiator as I was towing it home. So I need to replace the radiator. None of the parts places on-line show the F53 chassis, but they do show the F550. Is the radiator in the F53 the same as in the F-550? My F53 chassis has the V-10 6.8 3V engine. I'm coming up with Spectra Premium PN CU2886 and CU2887 for the F-550 with a V-10. Any help would be appreciated.