To Answer you question. I dont trust the shop at all. Story starts out that I contact them because they are supposed to be a high end resto shop that also does standard mechanic work. I ask them for a quote to do the pan gasket and the pinion seal. They tell me about a $1000 (the motor had to be lifted). I bite the bullet because I dont have the room or a picker to lift the motor. I've done one before and would have done it myself. Then they call and want to replace some dry rotted front end parts. I agree... they say we are about $1500... weeks go by and he tells me everything done, but they hear a rod knock. I say okay, well thats strange it was fine before... he says well there was a lot of sludge in the pan, it may have been keeping it quite. He then says well it may just work it self out if its a lubrication problem. I say, well okay I'll take my chances because I cant get into the expense of ripping the motor down. He says well you may want to hear it before you drive it. I say okay, well where are we at cost wise for what have done... HE SAYS $6K!!!. I flip out and say there is noway I am paying that, Im picking up the car. Ill give you $2K,he agrees but asks for cash!
So long long story short, I think the guy is a crook. I know there was no knock before... but what am I supposed to do but get my car out of this guys shop before he threatens to keep it unless I pay him his crazy invoice.
If the knock was there, wouldn't it have mad sense to inspect the bottom end when the pan was off? Could cleaning sludge out of the pan/pump really uncover an issue like this or am I being jerked around?