Traction woes.

I had similar issues with my 60fts and ET,usually 1.44-1.46 60fts then the start of season 1.52-1.56 WTF? Was wondering if it was my new 10.5X29.5 slicks.I decided to remove my Trans pan for inspection and found metal shavings on my filter and in my pan.I took pics and showed my Trans builder and he said metal could only be from my verter(which was 5 yrs old and many passes)I swapped out my verter for exact same one.My 60 fts dropped back down to 1.40- 1.42 and knocked 2/10ths off my ET. Pic of pan. View attachment image.jpg