My window sticker shows 3.47

 

Yeah, info varies per source. The Dodge web site says 3.45, stickers say 3.47, but ZF (the manufacturer of the 225mm r&p) says it’s 3.46 from what I’ve found. Either way the difference is miniscule. I’ve been searching and waiting for a new gear set to become available in the 3.92-4.10 range. I think this would put the D’s acceleration where it should be and allow the MDS to stay active through more load ranges.
This would be more beneficial to those of us who live in hilly/ mountainous terrain or do much towing.
Hypertech has a programmer that can recalibrate the speedo for tire size/ gear changes on the ‘11+ D.

 

yeah my bad 3.47. What do you have done to your truck to a sub 5 sec. 0-60 time?? For a third gen that's quite an improvement.

 

What have I done?
Comp 268 / 6.1 springs & rods / Jet 180 T-Stat / Vararam / DSP - Tuned by HemiFever / Pacesetter LT Headers / Cats - Opened up to 3" in-out / 3" ORY / Cut-out / Borla XR-1 / SRT-10 Gauge Pod / Aeroforce Intercepter / AI Wideband O2 / 2800 Stall TC / Sonnax Line Booster / 4.56 Gears / Bilstien 5100's / Hellwig Rear Sway Bar / Yokohama Spec-X's 305/50/20 / Viper Alarm / Jimmy Jammers / Caltracs / DJM Drop Shackles w/ OL Spring removed / TB GW

And still adding to it.....

 

sounds like that'll do it. LOL!

 

With aftermarket 4.56 gears you know better than to compare a stock RT with your truck on a 0-60. 2800 Stall....Your truck is built for the launch and the 1/8 mi. Also do not forget the Durangos only pushing 360hp compared to the 390 hp you may have heard on the RAM HEMI commercials.

 

OH yeah - we're nearing 2 years with no PCM Support for the 11/12's I hope that folks have not given up, but seriously.... 2 Yrs?

 

That is a detriment for those of us who like to mod our engines.

 

Thats why I am asking about stock performance specs and what is available aftermarket for them. Gives a starting point for what they can do and what I would need to do to get it to perform like I would like it to. Not looking to turn it into an all out race car, have the truck for that for now, but for the hp/tq rating on them I would have thought they would be a little quicker than what they are.

 

There is a big difference between my two trucks, and with a K&N they are basically stock. You're gonna notice it a lot more. But - that said, the RT is a great ride, and if you are gonna get one - might as well work off some warranty miles while waiting for the aftermarket world to catch up.