A guy at work just bought a 2005 Dodge SRT10 with a 6 speed and the new factory change 411 to456 gears.The truck is 500 hp, is about the same wheel and tire height and is about 800 lbs heavier than the SSR. He let me drive it and with the 456 gears, this truck shifts great. Has the same 6 speed tranny as the SSR. First gear felt good, was't shifting too soon like I thought would happen. The tach moved a lot faster, but this was a real thrill to drive The truck just plain performed like it was light even though it was heavy. After driving this I'm definitely ready to switch to 456 gears. I would even do it now with out having a programmer available if all I have to worry about is the speedo beeing off. When the programmer is available I'll change and correct the speedo. Does anyone know like ( Jim Gnitecki ) if this is the only problem I'll have with out having the programmer