I remember when I bought the WB 253 Kingswood in 84 it was 3.36 GV4 as standard and GV7 3.55 as optional - can't remember if 3.08 was even an option? Went for 3.55 as I was pulling big floats back then - great for that but used to cost a fortune to run - needed an extra cog as I was living in Geraldton running back to perth each week - wouldn't make it on a tank with no load.