Two 12 volt batteries out of 2005 Dodge Laramie 3500 diesel

havel 2 x 12 volt batteries that are 3 yrs old. $100.00 or best offer. I took them out of my 2005 Dodge Laramie 3500 diesel. I was having a starting probable and thought it was the batteries and bought new batties. It was not the batteries. The batteries are about 3 yrs old.