I dont have an SS, yet, but my 1500 I bought brand new in 05' is pushing 400,000 miles. To this day, It has never left me stranded on the side of the road. The valve guide seals are toast and it knocks pretty bad, but still runs like a champ. Although, I fear it may break on me soon. Who knows. Its been to 31 states and I took an 8,000 mile roadtrip out west in it when it had 278,000 miles on it.