running these on stock aluminum wheels would i have to get my speedo recalibrated?

 

You will be about 3 percent off. Its up to you. Those are excellwnt tires by the way.

 

i see you have the ats tc. do you have any problems running the edge on 5/5

 

I had my pinion factor reset to 634 for my 285s. I did not notice any difference in driveability but I like not having to do the math to figure my corrected speed.

 

I run the edge on 5/5 all the time since i got the tranny upgrade. Its works extremely well. No worries.

 

surfram, do you have a leveling kit also or is it just the way the truck is sitting?

 

No leveling kit, but my truck does have the factory "snow plow prep" option. I guess the front coils on snow plow prep trucks must be heavier duty because my truck has less of a rake than most 3rd gen CTDs I see on the road.