MODENA – Retired tractor-trailer driver Norman Ostrander holds two letters in his hand from his pension fund.One, dated Jan. 3, 2008, says his monthly pension benefit of $3,078 is payable to him for the remainder of his life.The second, dated Dec. 2, 2015, says that starting Feb. 1, 2016, his monthly benefit will be reduced to $1,846.80.“They said all along that there were problems,” Ostrander said last week at his home in Modena.