I believe that the '05 on up have taller tires.

Nick

 

My wheel and tire size is the same as his just a different offset.

 

the 05 is a 3550

 

No. His says T-3650 right on it. I did a google search and everything I can find says 3650 for 05 - 07 GT.

 

the trannies are dif

thats y u have to buy a shifter for an 05+ instead of a 02+

 

The S197 has a T3650.

 

Here are the ratios.

Transmission GT
Standard 5-speed manual (Tremec 3650)

Gear ratios

1st 3.38:1
2nd 2.00:1
3rd 1.32:1
4th 1.00:1
5th 0.68:1
Reverse 3.38:1 3.15:1

 

Thanks. I will check this to mine when I get home.

 

Here are the ratio's of the 3650 for the New Edge cars:

TR-3650 used in 2001-present Ford Mustang GT's
1st: 3.380 :1
2nd: 2.000 :1
3rd: 1.320 :1
4th: 1.000 :1
5th: 0.620 :1
Rev: 3.380 :1

 

The od ratio is different. There you go.

 

The difference was from 1-3 though. I'm thinking maybe this trans is not from a mustang or has been changed for some reason. I'm going to jack the car up when I get home and rotate the motor by hand and see if my ratio are even close to the ones you posted.

 

Anytime smc.

 

Yes that is a possibility.

 

Here's a link to Tremec's website, this is to the 3650 page...

 

The only reason the new ones use a different short htrow is because the tranny sits up from the center dash. Basically when they dropped the tranny and motor in the shifter was sticking through the stereo so they engineered a way to extend the shifter arm for the tailpiece to make it in the proper area...

same tranny. It will work. 5th gear is different thats it. Also i beleive the 05+ use a hydraulic clutch assembly instead of cable.