I am refering to the switching of the pedal spring in this thread...

http://www.dieselplace.com/forum/showthread.php?t=269824&highlight=Pedal+Spring+upgrade

Is there any way that this can be done to the 06+'s? or if there is any way at all to stiffen up the pedal some it is way too soft for winter driving up here in P.A., Sk. Love these trucks but I need to find a fix for this.

I dont believe so. The accelerator unit is sealed up in the 06 and up trucks. My 05 has everything exposed so its an easy swap,been thinking about doing this mod also.

There's no way at all to pop the case off or anything? That sucks was gonna do this fix n be done with it but obviously not anymore.