Hello,
I have a 1989 omc cobra..5 liter ford. Upper gear ratio is 21/17 in the outdrive. One of the gears chipped off...causing lots of problems. The case is now gauged around the bearing...and I will need a new case and gears. Question: I have a buddy with an old 1988 omc cobra drive from a chevy 305. The gear ratio is 21/17. If I swap the upper units...how will the change in ratio effect my boat? Or..if anyone has an upper unit to trade or sell.
thanks..Jim
I have a 1989 omc cobra..5 liter ford. Upper gear ratio is 21/17 in the outdrive. One of the gears chipped off...causing lots of problems. The case is now gauged around the bearing...and I will need a new case and gears. Question: I have a buddy with an old 1988 omc cobra drive from a chevy 305. The gear ratio is 21/17. If I swap the upper units...how will the change in ratio effect my boat? Or..if anyone has an upper unit to trade or sell.
thanks..Jim