I was able to remove the both lower left/right screws without taking out the radiator when I did the job. It was extremely difficult and took a long time using all sorts "thinking outside the box tools". We are talking 1/8th of a turn at a time stuff🤣
When it came to time to reinstall, I could not get the lower left back in. A couple of freinds had same experience and just left it out. No issues.