mercruiser f 6340752

garyoja

Seaman Apprentice
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Jun 7, 2013
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37
my 81 hammond challenger drive has this stamped on it f 6340752 . one guy says its a number 1 drive and another says its a alpha . i am curious now as i cant seem to figure it out lol . sorry if the answer is posted else where i have looked hi and low . Thanks guys
 

garyoja

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Jun 7, 2013
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Re: mercruiser f 6340752

hmm interesting . looks exactly like the alpha wonder if its been changed ?
 

Don S

Honorary Moderator Emeritus
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Aug 31, 2004
Messages
62,321
Re: mercruiser f 6340752

My bad, I went by year without actually looking up the serial number. Yes, you have a 1983 R drive with a 1:50 gear ratio.
 

garyoja

Seaman Apprentice
Joined
Jun 7, 2013
Messages
37
Re: mercruiser f 6340752

My bad, I went by year without actually looking up the serial number. Yes, you have a 1983 R drive with a 1:50 gear ratio.
Thanks Don you the man you made my night . been trying to figure this out for a while . old unit must have packed it in at some point . thanks again
 
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