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what drives are these 3 or 3a's?

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Old 02-06-2010 | 09:03 AM
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Andy
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Default what drives are these 3 or 3a's?
what drives are these 3 or 3a's?
Attached Thumbnails what drives are these 3 or 3a's?-drive.jpg   what drives are these 3 or 3a's?-drives.jpg  
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Old 02-06-2010 | 10:02 AM
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The drives you are showing appear to be #3s. 3As have a larger prop shaft (26 splines) as opposed to the #3s 19 splines.

Here are a couple of pictures of my 3As for comparison.
Attached Thumbnails what drives are these 3 or 3a's?-drive-painting-060-large-.jpg   what drives are these 3 or 3a's?-drive-painting-061-large-.jpg   what drives are these 3 or 3a's?-drive-painting-073-large-.jpg  

Last edited by Roger 1; 02-06-2010 at 10:49 AM.
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Old 02-06-2010 | 10:07 AM
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You can also see that the torpedo or bullet on the lower section is a little larger on the 3As to accomodate the larger prop shaft.
Attached Thumbnails what drives are these 3 or 3a's?-drive-painting-059-large-.jpg   what drives are these 3 or 3a's?-drive-painting-066-large-.jpg  
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Old 02-06-2010 | 10:35 AM
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Also the hole where the trim rams hook to is about 7/8" on 3 and 1" on 3A. I was educated by a fellow member on this as well.
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Old 02-06-2010 | 01:12 PM
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You want to sell them. JOHN
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Old 02-07-2010 | 11:01 AM
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there on ebay $2500 for the pr
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Old 02-07-2010 | 11:17 AM
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Nice job on the drive stands Roger!
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Old 02-07-2010 | 09:07 PM
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uhm, I also want to know is what you have learned, you can help meNational Transport
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Old 02-08-2010 | 11:36 AM
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? As in what? The lads already said they where speedy 3's
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Old 02-08-2010 | 01:22 PM
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Does anyone know if Merc actually made a III with the crescent, or were these modified by someone? All the III's I have experience with have a straight leading edge above the gearcase.
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