The red car had less than 200 miles, still has less than 800 now. And the black 6 speed car had right at 1000 miles on it at the racetrack. The other question about what they can handle before drivetrain failure, I would say don't try sticky tires as the rear in the 6 speed car is allready pretty noisy with only 1400 miles of abuse with stock tires. Time to put it on a lift and clean the rear wheel tubs and make use of the lifetime warranty.

Just for reference , there's a guy on Dodgetalk who's gone 14.007 @ 96.75 with a stock 5.7 '09 RCSB Dodge Ram w/3.92.....

Dan, how did you get 2 cars under 58 grand? Assuming the black car was at least 4 grandish more, thats like 27 for the auto and 31 for the stick car with the 20's, which are both really good deals from the looking around i've done.. did you get an extra good deal buying 2 at once?

Different brand and not totally stock but, a kid on PT.net has an 08 silverado RCSB 5.3 and 3:42's with nothing more than headers and a computer tune running a 13.98.

New 500HP and 1000HP IRS Axles for Challenger/Charger/300

http://www.driveshaftshop.com/main_cat1.php