I just installed a trans temp guage sending unit in the pan. Also the aux trans cooler is plumbed after the radiator trans cooler. Temp guage shows 240 deg normal driving. Is it that inaccurate mounted in the pan (40 deg)? Checked fluid and it is a little over full. I think Bruce recommends it be plumbed at the trans return line fitting, but this was just as easy since i had the trans out anyway.
Mitch
Mitch