i like that the silverado has a good tranny behind it but the front end noises could be more labor the f sounds good as well looks like the cooling system is in good shape as long as the tune isnt too hot its going to be a solid truck if youre going to keep a truck im gunna say the f holds more value than the silverado with the market liking diesels at the moment it could also be a good time to sell the f i think it boils down to are you going to need the extra towing power seem like pretty equal options