Don't think the fan nuts were issues, i have replaced radiators on my rig about 5 - 6 times now. All i am saying is, be careful with a cracked fan shroud, it will eventually take out your radiator and fan and have you stranded. Ask me how i know,,I have no idea what you’re referring to. The battery box was not in the way of anything. I dropped the fan nut because you can not hold it. Must use needle nose plyers or other such method due to very limited clearance for the 4 fan nuts