Crimping a radiator side tank

Okay looked at the crimps where it had been leaking and did not see any that were cracked.
Got the radiator back into the Durango fill it with water. Drove around for a few miles no leaks no overheating.

The antifreeze that's in it now is green. So that slush probably came from the original antifreeze from the factory.

I'm going to back flush it, then put new antifreeze in it and see how long it will last, hopefully several years.

Thanks for everybody's input.