Overtightened lug nuts

They brought out the manual torque wrench and muscled 4 of those loose.

The torque wrench is used to tighten only. Nobody cares about break free torque and the wrench isn’t designed to handle excessive leverage. A length of pipe over a breaker bar and 6 pt socket will remove the nut. Then carefully inspect the threads for damage.

BTW- break torque is not necessarily indicative of initial torque but when you can’t break them free under normal means, they can be assumed to have been over-torqued.

I use a 600ftlb impact gun to remove stubborn lug nuts. What shop is limited to a puny 300lb unit???