the guy is a ass hole does he think ups or fedx loosed them rookie mistake.they must have the cleaning person build engines know.it's never the builder that makes the mistake.i'm sure he gave you the we check everything twice speech bull shit.it must have been dollar beer night at the bar.it must be a back door builder because anyone that knows what he is doing would stand behide there work.the easy way out for the guy is to say you did it but if you never touched the bottem end how the hell does all the rod bolts come loose they don't someone left them loose and if the guy is that dumb then there is no hope.you can buy a tractor and go pull his head out of his ass.jeff