outdrive ratio

roffey

Commander
Joined
Nov 22, 2012
Messages
2,190
Can I get my gear ratio using just the serial number of the outdrive?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,513
Ayuh,.... I donno,... If it's all original, Yes,... probably oughta be askin' in the Merc I/O forum though, or the Non-repair I/O forum,.....

The 4.3l usually runs a 1.65:1 or a 1.84:1,....

If ya got it off the boat, just turn the drive shaft, 'n count the prop rotations,....
 

roffey

Commander
Joined
Nov 22, 2012
Messages
2,190
Thanks for the reply, its all original and still on the boat, Its more for curiosity sake than anything else. I thought there might be a place I could just pop in the serial number and out would pop my ratio.
 

roffey

Commander
Joined
Nov 22, 2012
Messages
2,190
I found it, my bet is most of you people new where it was located and I know that is not the question I asked. I found it on the side of the drive. It is 1.81 ratio.JPG
 
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