451Mopar
Well-Known Member
Was the shift kit one where you drilled down one of the walls? I installed a B&M transpak in a 727 in the '90s and I seem to remember drilling a wall in the valve body.
This was back in the 1980's. I think it was just one of the $19.95 seperator plates, removing balls, balls and upping pressure.
Just because it shifts hard doesn't mean it is shifting good.