My father-in-law has a crack in his Suburban. Taking it out and repairing the crack is so much easier than removing the radiator from the VW Beetle. The downside to the repair is the location. The crack runs perpendicular to the support ridges along the end cap. This makes a patch job a little more tricky trying to ensure an even seal across each ridge. Because of the location it may need a new end cap, or new radiator. A new end cap runs about $120 where as an entirely new radiator is around $180....Hard to do a fix for 2/3 the cost of a new one, especially considering how old the radiator is now. Budget constraints will determine if we go with a new one, or just an end cap.
Here are a few pictures of the radiator removed, the patch and it all put back together
Here are a few pictures of the radiator removed, the patch and it all put back together