why couldnt you go to a junk yard like johnsons truck and mustang off bainbridge road and take a tape measure for the seats. if you are just looking to a replacement right? when you go like i said take a tape measurer and measure the bolts on the newer trucks to your trucks to see if you can mount them. im pretty sure that the cabs on that year are the same from 88-98. if anything you can always drill new wholes and put new bolts up to hold the seat down tight. make sure that you use like 2"x2" plates to spread the weight evenly.