soon to be installing my ruslow 1200 coils/hotchkis rear leafs and will need to get the front an alignment. which specs should i use the stock or the owner preferred specs that you see posted. the truck is soon to see open track events but is a d.d. so dont want tire wear to double.

 

I had my truck aligned to the Lightning owners preferred specs and my truck is very sensitive to road crown now. I am also seeing a little more wear on the outside of the front tires than I like to see after 1,900 miles.

The shop who did mine is the best in town and has a brand new alignment rack so I'm pretty sure it's set up right. I think I am going to go back to the stock settings. I don't know that much about alignments but that has been my experience so far with the preferred specs.

Randall

 

I installed my Roush suspension (thanks Chikenears !!!) about 10,000 miles ago - I aligned it to stock specs and have not had any abnormal tire wear.

Tracks the same as it always did on the road - not bad, but not great.

 

Sounds like your camber is wrong, or you are running under inflated.

Go Here and scroll down to Alignment specs.
I am running the last setup with 1.5 degrees of neg camber. Yes, my
inside tires wear a bit, but it turns in like a sled on rails ...

As far as alignment is concerned:

All you ever needed to know about alignment specs