"Took Disco to dealer for inspection they said a head gasket is leaking, the cost is high and Im not suer if I should replace or take somewhere else & repair. Also they want to doa brake flush & air & duct cleaning are these necessary? Thank You Rae

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- No matter where you go to get a head gasket replaced they are going to charge you a good amount your best bet it to take it to the dealer, because they are most likley to know what they are doing. If you take it to a local mech. shop they might not cover it with a warranty where you could be looking at higher costs down the road. Get it done right the first time so you dont have to face more problems down the road.

as far as the other things go a brake flush is not a bad idea but a duct cleaning dosent have to been done just general matinance.