make changes to tune?

[Jerry226]

U7193 I just put 456 gears in my 04 SSR and went to change tune and it only had 455 that I can change to.I don't think they make 455 gears for a ssr.Will there be a update for the u7193 to make proper gear changes in the future? Thanks

[06MonteSS]

probably not...

you'll need to get a custom tune done to have it changed....

[Mike_Levy]

4.55 to 4.56 is so close that its not gonna make a difference. Just pick 4.55. It'll be fine. That seems like an awful lot of gear for an automatic 5.3 though. And thats coming from a nut who likes to over gear EVERYTHING.

[Jerry226]

The ssr weights 4700 lb empty and it is a 300 hp slug. The 456 gears gives a much better take off and the transmission is about the same n low end. I get 3 more mpg in town and the same on the road because of overdrive.

[Mike_Levy]

Hummmm..... maybe I should gear up the Denali. Its only got 3.42s, so maybe 4.88s or 5.13s would be good. Nah, seriously, I'd be looking 3.73 or more likely 4.10s or 4.30s.

Regi says 5608lbs, 403hp (more like 425). Maybe I can get that sluggish 6.3 second 0-60 down into the 5's.

Does it use the same axles as the SSR? 8.625" in back, I believe? No idea what it has in front.

[rlkimmel]

Hummmm..... maybe I should gear up the Denali. Its only got 3.42s, so maybe 4.88s or 5.13s would be good. Nah, seriously, I'd be looking 3.73 or more likely 4.10s or 4.30s.

Regi says 5608lbs, 403hp (more like 425). Maybe I can get that sluggish 6.3 second 0-60 down into the 5's.

Does it use the same axles as the SSR? 8.625" in back, I believe? No idea what it has in front.

Remember. Under your Yukon is a Sierra frame. 4.10s are available. And, what was that about gas mileage? (sorry, couldn't resist a small shot. )

[Mike_Levy]

Once everything is back to normal and I can get gas without waiting hours, gas mileage be damned. Its just the residual effects of Sandy that are making me care about economy right now.