I updated the previous list. These are the best seasonal goalscorers for Juve from its beginnings in the late 19th century, until today.
Unfortunately, those crazy 1920's and 1930's are taking every chance Tevez had for topping this list. Perhaps he could have done it if we took the last 5 rounds of serie A seriously and the team played for him, but he'll be rested on most of these matches. The best he can do, imo, is to match Trezeguet and Del Piero, maybe even do a bit better. In any case, Tevez's season, goals wise, is already in the top 20 in Juve's history, and he should sneak into the top 10 if he scores 2-3 more goals. That's doable.