What's the transmission ratios in '05-up GT's?

Manual & Auto

 

Don't know about the manual but right from SCT Advantage the automatic is:
1st = 3.2186
2nd = 2.292
3rd = 1.5446
4th = 1.000
5th = .7121

 

Wow, that's one heck of a first gear

 

I think the manuals are exact same as the 04's since they both have the tremec 3650..
1st 3.34
2nd 1.99
3rd 1.33
4th 1.00
5th 0.64

I could be wrong but I don't think I am..

 

Heres' some info I found for the manuals. Slightly different than dan03mach post. Maybe the way they are rounded off.

Gear Ratios:
GT
(Tremec 3650)
I 3.34:1
II 2.00:1
III 1.32:1
IV 1.00:1
V 0.67:1
Reverse 3.38:1
Final Drive 3.55:1

 

Like I said I wasn't 100% sure on the ratio, so I guess they changed a few things in it since 03-04..