mine flashed a while back when towing up in the mountains. pulled two codes, forgot what they were but both related to the clutches. dropped the pan for inspection and a whole lot of shavings in the pan. and it too felt fine, for the most part. i could feel it slip between 1 & 2. $3700 for a stock trany, yikes. i decided to spend $4900 and have it beefed up. shifts like a monster now.