My 06 had the seven core option and it fits with no mods.>>>Dan
Was a seven core radiator an original factory option for the 4106, or is this an upgrade done later?
The part between the tanks where the fins are will be about an inch thicker on the seven relative to the five.
My 4106 got a 7 row core from Macs radiator in Salem, OR about a month ago. .... New core bolts to existing upper and lower "tanks" and has identical exterior dimensions.