3.9-1 diff ratio


ultrasportracing

GT Owner
Aug 31, 2011
490
Perth Western Australia
Does anyone know where to get the lower diff ratio. Stillen no longer stocks it..
 

BlackICE

GT Owner
Nov 2, 2005
1,416
SF Bay Area in California
Out of production unless someone wants to buy 10 or 20 sets up front from what I heard.
 

Gulf GT

GT Owner
Mark II Lifetime
Feb 9, 2006
1,539
California
Out of production unless someone wants to buy 10 or 20 sets up front from what I heard.
Correct and not likely to be made available again. Glad I have it.
 

BlackICE

GT Owner
Nov 2, 2005
1,416
SF Bay Area in California
Correct and not likely to be made available again. Glad I have it.

:agree:

I was on the fence when Shadowman told me they are out of production so I decide to go for the gears. Great mod! IMO the stock 1st gear always felt too high, like starting up in 2nd on most other cars.
 

twobjshelbys

GT Owner
Jul 26, 2010
6,060
Las Vegas, NV
I'd be interested if you're looking to build up a list. Well how much was it?
 

FBA

GT Owner
Dec 5, 2010
1,663
31.022340° N / 44.846191° W
I did a 355 in my 08 SRT10 and that was insane. I can't imagine what a 391 in a GT would do.
 
H

HHGT

Guest
If there is enough demand, I can look into making them.
 

PL510*Jeff

Well-known member
Mark IV Lifetime
Le Mans 2010 Supporter
Nov 3, 2005
4,881
Renton, Washington
Correct and not likely to be made available again. Glad I have it.

+1
 

RALPHIE

GT Owner
Mar 1, 2007
7,278
An alternate solution is to go to a P345/30ZR19 - Michelin makes them in the Pilot Sport Cup.
 

2112

Blue/white 06'
Mark II Lifetime
I'd be interested if you're looking to build up a list. Well how much was it?

The number of $6500 was tossed out a while back. That is the new price from Ricardo.

An alternate solution is to go to a P345/30ZR19 - Michelin makes them in the Pilot Sport Cup.

A bit more cost effective.
 

twobjshelbys

GT Owner
Jul 26, 2010
6,060
Las Vegas, NV
The number of $6500 was tossed out a while back. That is the new price from Ricardo.

I think I would be in. I had a 3.5x on my Mustang and Cobra but was really looking for a 4.1-ish.
 

BlackICE

GT Owner
Nov 2, 2005
1,416
SF Bay Area in California
The number of $6500 was tossed out a while back. That is the new price from Ricardo.



A bit more cost effective.

That doesn't include installation. To my knowledge, Stillens was the only authorized place to get the installation done and the only source for the gears.
 

2112

Blue/white 06'
Mark II Lifetime
That doesn't include installation. To my knowledge, Stillens was the only authorized place to get the installation done and the only source for the gears.

Correct, not including installation at Stillen or the R&R of the transaxle.
 

2112

Blue/white 06'
Mark II Lifetime
That doesn't include installation. To my knowledge, Stillens was the only authorized place to get the installation done and the only source for the gears.

Correct, not including installation at Stillen or the R&R of the transaxle.