ORIGINAL: raj1980
you are paying an awful lot for them to give you the same open carrier. The LSD on thee cars are a standard open differential, with comuter programming that senses wheel slip and applies the brake to that slipping whell thereby transfering the power to the sticking wheel through the open diff. As for me, I'm going to start looking for a new carrier to put into this bad boy.
Raj, that computer programming is called "brake-lock differential", and it's what's in the 2008 SRT. The '09 R/T manual, and all '09 SRTs have real mechanical LSD units, not open diffs using the brake pads.
Read this quote. I ain't making this up.
http://www.autoweek.com/apps/pbcs.dl...8/newsletter01
"The '08 car doesn't have a true limited-slip; it has what we call brake-lock differential. It's an electronic version of a limited-slip. It works by slowing one wheel down to match the other wheel. But it doesn't really instantaneously put all of the power to the ground.
"So, on the '09, the limited-slip will make the car faster in autocross, really any kind of road-racing activity. Getrag is the manufacturer, but we're going back to buzzwords of the '60s and '70s, and it'll be called a Track-Loc.
"That will be on the 5.7 and the 6.1 manuals and on all of the SRT automatics. It's a very good package. It puts the power to the ground very effectively. It allows the owner of the car to really enjoy the experience.
"This car has a rear axle that's actually produced by Mercedes; it's the primary rear axle in all of their performance cars, with 215-millimeter ring gear. But for 2009, the ring gear goes up from 215 millimeters to 226 millimeters.