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Old 08-26-2015, 07:01 PM   #1
Join Date: Aug 2015
Posts: 1
Default 2002 2100 Sd Gear Ratio ?

I have a 2002 2100 SD and the lower unit has went out in it. I am looking to buy a replacement quickly to get me back on the water this season. I know the boat has a 5.0 V8 with an Alpha 1 Gen 2 outdrive. What I don't know is what the gear ratio is. Unfortunately the boat is stored 200 miles away from where I live and I hate to drive there just to look at the serial number on the outdrive. I have the Hull serial # but that doesn't seem to help.

Anyone have any idea of what this gear ratio is?

itsallgood is offline   Reply With Quote
Old 08-27-2015, 10:24 AM   #2
Join Date: Mar 2010
Location: Southern Maine
Posts: 289

According to the parts catalog at, the following was the factory set-up:

MERC A1 SD, 1.47

Therefore 1.47:1 gear ratio.

Good Luck. You can veify it yourself at the web address.

CountryME is offline   Reply With Quote

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