Originally Posted by v8hunter

Keep us posted on your impressions of the 411s. I have been bouncing around the idea of long tube headers or gears for a number of months so I am very interested in your results. I absolutely hate the 3.42 gearing in my truck...especially when towing a decent sized load. I have been trying to decide which one to do or whether to just forget it buy a new duramax instead and build it up.

Originally Posted by iamkeniff

4:11s on a 275/55/20 at 70mph is 2000rpm

Originally Posted by gsxrluke

what transmission do u have to turn 2000 at 70mph six speed?