The 260E had its tranny rebuilt with a new valve body last month. So, I think that would be ruled out.
Although, on a seperate issue, I noted that the tranny is not so smooth in the change of gears with a slight jerk despite its rebuilt. The fault was discovered where we have a faulty oil pump. That was replaced over the weekend.
The mystery continues ....
126 tailed by a 203, 129 leading the pack.