ran303The 3.03 that was behind I6's, small blocks and 352FE's had 2.991.721.00 gears and the 390FE and up had 2.421.601.00 gear ratios. I'm pretty sure the 2.42 box also had aThe IH 303 was introduced in 1962. They could use the No. 22 corn head, or platforms in 10, 12, or 14 foot widths. Horse power of 65. Production ended in 1967. $300