'07 GT Final Drive Ratio

R

R.A.F.A.L.E.

New Member

Aug 13, 2006

6

0

0

Aug 13, 2006

#1

• Aug 13, 2006

• #1

I thought the final drive ratio was 3.55 with manual trans on the Mustang GT.

Now there's something confusing (at least to me) about the 2007 GT. On their "Build-Your-Own" website, Ford now seems to offer the 3.55 drive ratio as a $100 option. So what's going on. What's the factory final drive ratio defaulting to now if it's not 3.55? Anyone has a clue?

 

anthony05gt

Active Member

Mar 18, 2006

1,262

1

37

Maryland

Aug 13, 2006

#2

• Aug 13, 2006

• #2

The earlier GT's had the 3.55's standard with manual transmissions and 3.31's on the automatics. They recently changed that. Some say it's do to the rising fuel costs. If you are going to order one you may want to consider leaving the standard gears on your order and just installing 4.10's later. They are the sweet gears for the GT's. Mine's blown (11lbs) and I'm averaging 17mpg highway.

 

R

R.A.F.A.L.E.

New Member

Aug 13, 2006

6

0

0

Aug 13, 2006

#3

• Aug 13, 2006

• #3

anthony05gt said:

The earlier GT's had the 3.55's standard with manual transmissions and 3.31's on the automatics. They recently changed that. Some say it's do to the rising fuel costs. If you are going to order one you may want to consider leaving the standard gears on your order and just installing 4.10's later. They are the sweet gears for the GT's. Mine's blown (11lbs) and I'm averaging 17mpg highway.

Click to expand...

Ok thanks, so they changed the standard ratio from 3.55 for the 2007 line. But where does this leave us at then?

 

B

bushtree

New Member

Jul 25, 2006

3

0

0

Aug 14, 2006

#4

• Aug 14, 2006

• #4

Standard for '07 is 3.31 and you have the option of 3.55's still for $100.

 

93GrunT

Founding Member

Dec 17, 2000

342

0

0

NC

Aug 14, 2006

#5

• Aug 14, 2006

• #5

aye I paid the 100 bucks for the 3.55's, but I will have to stick with them until after the warranty is up anyways. So, I just figured what the hell I might as well since I have to be as happy as possible in stock form.

 

T

traffic142

New Member

Jun 9, 2006

10

0

0

Aug 15, 2006

#6

• Aug 15, 2006

• #6

What about the GTCS? what are they ordered with?

Does anyone have the code for it?

 

R

R.A.F.A.L.E.

New Member

Aug 13, 2006

6

0

0

Aug 27, 2006

#7

• Aug 27, 2006

• #7

traffic142 said:

What about the GTCS? what are they ordered with?

Does anyone have the code for it?

Click to expand...

Same thing. The GT/CS is a premium GT with a CS kit on it. You'll still have to add the 3.55:1 ratio if you want it on. I don't have the code handy sorry but it would take your dealer a heartbeat to find it.

 

93GrunT

Founding Member

Dec 17, 2000

342

0

0

NC

Aug 27, 2006

#8

• Aug 27, 2006

• #8

455 code, 3.55 gears.

 

metroplex

Member

Sep 7, 2003

405

1

16

SE MI

Oct 6, 2006

#9

• Oct 6, 2006

• #9

Do the 3.31s come with a LSD or open differential?

 

YardSpecial

New Member

Mar 20, 2003

2,664

0

0

MT

Oct 6, 2006

#10

• Oct 6, 2006

• #10

LSD

 

metroplex

Member

Sep 7, 2003

405

1

16

SE MI

Oct 11, 2006

#11

• Oct 11, 2006

• #11

The FSM shows that the V6s get open-differentials and Ford 7.5" rear ends, while the GTs (all GTs) get the Traction-Lok and Ford 8.8" rear ends.