You shouldnt have any drive line problems with a 2" lift. I think once i put mine up to 5" is when the driveshafts were binding and lost all my camber in the front axle but I had no problem when I was running 3" other then dropping my swaybar brackets

 

Dont look now but there is a set of those springs in rn bargain bin for $260 for the set. I may beat you to them -

 

Wanna race?

 

That's why I said to check their bargain bin. I'll take a scratched spring at a discount over paying full price for a shiny new one.