melford Posted January 26, 2013 Report Share Posted January 26, 2013 Has anyone changed the gear ratio on their new '13 yet? Will a Ford Racing 3.73 set up keep the warranty intact? Quote Link to comment Share on other sites More sharing options...
WJinLV Posted January 26, 2013 Report Share Posted January 26, 2013 Still learning my 2013, but cant imagine needing a shorter gear. It launches like a rocket already with the stock 3.31. Maybe 3.55, but at 3.73 I'd thing you would have to love shifting quickly and often. Quote Link to comment Share on other sites More sharing options...
ASO544 Posted January 26, 2013 Report Share Posted January 26, 2013 Got my done....the pull in 2nd, 3rd, and 4th, is brutal... Still launches and hooks up well if the tires and road are at the right temp. I love it plus the gear is better on the clutch. I used FRPP 3.73s... It will make your speedo off... Ford can't correct it... Only an aftermarket tuner can. Quote Link to comment Share on other sites More sharing options...
svtkeith Posted January 26, 2013 Report Share Posted January 26, 2013 Got my done....the pull in 2nd, 3rd, and 4th, is brutal... Still launches and hooks up well if the tires and road are at the right temp. I love it plus the gear is better on the clutch. I used FRPP 3.73s... It will make your speedo off... Ford can't correct it... Only an aftermarket tuner can. I agree think this is exactly what this car needs IMO...I found 3rd and 4th gear pull lagged a bit with the the 3:31's..and like you say is way easier on the clutch in 1st. Quote Link to comment Share on other sites More sharing options...
melford Posted January 26, 2013 Author Report Share Posted January 26, 2013 Got my done....the pull in 2nd, 3rd, and 4th, is brutal... Still launches and hooks up well if the tires and road are at the right temp. I love it plus the gear is better on the clutch. I used FRPP 3.73s... It will make your speedo off... Ford can't correct it... Only an aftermarket tuner can. Thanks for weighing in. Any regrets going 3.73 instead of 3.55? Top speed is inconsequential to me (speed limited 'vert- and I live in America...how often am I really going to hit 155?), I just want to best balance between pull and "cruisablity". I love the clutch saving aspect of the gear change, great point! Quote Link to comment Share on other sites More sharing options...
devious_stang Posted January 26, 2013 Report Share Posted January 26, 2013 There are quite a few guys changing over to 3.73, I will do it myself next year. Even with the change you still only spin about 1800 rpms in 6th at 75.....pretty damn good Quote Link to comment Share on other sites More sharing options...
aonebadbone Posted January 26, 2013 Report Share Posted January 26, 2013 3.55's are a great choice. I want to change mine out and havent got around to it yet. It would save a lot of clutches ifg it had come from ford that way. Can't figure out why they had 3.31's unless it was for fuel mileage. We still paided a gas guzzler tax of $1,300 Quote Link to comment Share on other sites More sharing options...
tomford Posted January 28, 2013 Report Share Posted January 28, 2013 I put in 3.73s and love it. It makes up for the 2.66 1st gear. Got a tune from JDM to correct the speedo and add some hp and fuel economy. Not that I give a sh*t about fuel economy. Quote Link to comment Share on other sites More sharing options...
melford Posted January 28, 2013 Author Report Share Posted January 28, 2013 Hey guys, newbie question- if you use a ford racing rear gear(I assume that's what everyone is doing right?), is it still covered by the warranty? Quote Link to comment Share on other sites More sharing options...
devious_stang Posted January 29, 2013 Report Share Posted January 29, 2013 Hey guys, newbie question- if you use a ford racing rear gear(I assume that's what everyone is doing right?), is it still covered by the warranty? No. Unless the dealer installs it and states they are going to cover you. Quote Link to comment Share on other sites More sharing options...
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