#3 gear combo to get 1.62
#1
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#3 gear combo to get 1.62
Can anyone tell me the upper & lower gear ratios it takes to make a 1.62 final ratio? A freind has the service manual but cannot find it and I can't remeber. I hate CRS!
#2
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Location: Kankakee Illinois
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Are you sure that you don't mean 1.68:1? I have the manual in front of me and it show that to obtain a 1.68:1 final that you need a 1.50:1 upper and a 1.125:1 lower. I don't see a 1.62:1 listed.
Roger
Roger
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Ah ha! I just checked the supplement to the service manual and there it is. Upper raito of 1.44:1 and a lower ratio of 1.125:1 will give you the 1.62:1 that you are looking for.
This comes from the supplement for 3As. The 1.68:1 info came from the manual for 3s. I don't know if there is a difference in available ratios between the two or not.
Roger
This comes from the supplement for 3As. The 1.68:1 info came from the manual for 3s. I don't know if there is a difference in available ratios between the two or not.
Roger
#6
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Thanks for the help. I think the 3 & 3A use the same upper gear but I am not sure. Does anyone have an #3 upper gear set for sale. Mine have not broken but one set is getting pretty worn.
Last edited by Offshoreracr; 03-26-2007 at 12:55 PM.
#7
Here is a new upper set at a savings $1500
Mercruiser part #43-818658A1
http://www.mercruiserparts.com/partsByNumber.asp
Mercruiser part #43-818658A1
http://www.mercruiserparts.com/partsByNumber.asp
Last edited by Comanche3Six; 08-29-2007 at 10:40 AM.