Ecoboost Performance Forum

Vehicle Specific Boards => Taurus SHO, Taurus PI, and MKS => General Discussion => Topic started by: Cru ss n on January 02, 2020, 10:41:12 AM

Title: Could the Final Drive Ratio in 2010 Lincoln MKS really be 3.07?
Post by: Cru ss n on January 02, 2020, 10:41:12 AM
Hello, I just purchased a 2010 Lincoln MKS Ecoboost and I noticed it shows "4A" for the axle code on the door sticker.  From my research, it appears that is a 3.07 ratio.  Could it really have a 3.07 ratio when all of the SHOs are either 2.77 or 3.16?

Thanks
Brian
Title: Re: Could the Final Drive Ratio in 2010 Lincoln MKS really be 3.07?
Post by: SHOdded on January 02, 2020, 01:20:22 PM
Did u pull the code from a truck site or vintage  site perhaps?
Title: Re: Could the Final Drive Ratio in 2010 Lincoln MKS really be 3.07?
Post by: nickstewartroc on January 02, 2020, 01:38:38 PM
According to the FSM indentification, no, it's a 2.77 (http://www.nicksmustangranch.com/Service_Manuals/2011/2011_MKS/Resources/Service_Manual/sbh01001.htm#extract_12 (http://www.nicksmustangranch.com/Service_Manuals/2011/2011_MKS/Resources/Service_Manual/sbh01001.htm#extract_12))
Title: Re: Could the Final Drive Ratio in 2010 Lincoln MKS really be 3.07?
Post by: Cru ss n on January 02, 2020, 03:23:50 PM
great, thanks.  I had seen this chart before and I assumed the 4A was the same as 4.

Axle Ratio
1 = 2.77
2 = 3.16
3 = 3.39
4 = 3.07
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