The bolt in my hand ordered by vin for the 99 (4/99) 4Runner is as The Durk said, 90119-16006.
A while ago when doing the timing belt on the 96 the parts guy got me the torque spec out of their shop 'puter- 217 ft lbs. Is it for trues? I don't have anything to say it is or isn't.
They're trying to weasel out of their liability. If they found preexisting damage they had an obligation to advise you. I doubt that a small claims court would bite on their story.