The dang stealership is tellin me that when they replaced the two hard cooling lines under my car that they found that the heater core tubes were dry rotted and needed replaced along with the fuel filler neck.They say they have to drop the fuel cell in order to acomplish all this mess.Do they have to drop it or am i being ripped off?I took it to a Toyota dealership so I hope they aren't tryin to rip me off or anything....I know that if it comes to taking the fuel tank and dropping it that I don't have the means to do this myself

.Any words of wisdom or encouragment would be highly appreciated

Thanks.