Well here's the deal, the dealer uses flat rate pricing for all there NON-warranty work. So regardless of how much time It actually takes, you are still going to get charged the full amount. I can tell you my few experiences with the dealer as follows: 90 Lumina 3.1v6 fuel pressure regulator $600, fuel pump fuel filter and some other garbage $1,200, 6 new injectors $900, by the time I got out the door I had almost $4,000 in reciepts and I still had to have the car towed home! F&#^ the dealer I say, honestly you could probably do it yourself If you try. Even at an independent shop those repairs will be pricey, would I have that done at the dealer?..........No, but it's your truck. Another thing that drives there prices way up, Is the fact that they use Genuine GM parts (big frickin deal) I would check around and find a lower price, from what I have seen and experienced 99% of those ASE mechanics don't deserve the patch they wear.