after 11 years of driving my 4th gen max I decide to get the belts changed. PS plus serpantine. after the job was done I had a look at the original belts. seems the only wear was on the ribbed part, the outside looked and felt great . but the inner parts where cracked every 1/16th of and inch.any idea how much life i had left?

After that much time, probably not much more. How many miles are on your car?