First time in new town I had my FJ's winter set swapped (simple bolt on) by a Tire Factory.
They had so much torque on their impact...they stretched and snapped two of the lug bolts!! They made up some story about hearing there was some defective batch from Toyota. Of course I made them fix them. But I always thought I should have had every lug bolt replaced because who knows how much they stressed the rest of them.
Thank god for forums to vent frustration.
Anyway...I'll probably have Ford dealer or oil shop do mine. If the oil place, I'll be watching and giving specific direction prior.