How can I tell size of lift on lift spring??

[dannnzera]

I currently run a 4" spring up front and blocks with add a leafs on rear of my 03 f250 6.0I have managed to run 37" BFG but do get some rubbing I would like to lift my front to be leveled or a bit higher than the rear. I purchased a set of 6" springs online and found that they where not what the seller advertised or brand at least (Deaver) but I have contacted deaver and they tell me that their 6" springs have 12 leafs per springs and mine only have 6 leafs... My current set up has 4 leafs so I might be ok after all but would really hate to do all the labor or pay for the labor to only get the same current lift I have any help is greatly appreciated. I would like to know if the springs I purchased are in deed 6" springs is there a way know by looking at them or if any one knows the measurements 6" springs should have from floor to center of spring ??? any input is appreciated

[LHMissions]

Not sure what your question is?

Are you asking what to do on an '03 to clear 37's? Or what lift to install?

When you say you are rubbing - what are you rubbing on? Leafs, air dam, rear fender trim? 2 of those can be easily modified (sawsall & zip ties)

I run 35's with just a 2.5" add-a-leafs and clear my front leafs by 1" on full lock turn.

[dannnzera]

I currently start rub at complete turns