Whats the difference, when you measure the wheelbase??

I haven't. Should I do like center of front wheels to center of rear wheels?

Seems even with the winter wheels.

If the rods are equal, and your wheelbase is equal, youre good.

Then your fenders shouldn't be used as a gauge.

Guess so. Still waiting on alignment. Need front arms!

So question is, will these parts work in a stock suspension? or is it not worth buying unless you add other components to the mix.

It's one of those things that's really the last piece of the puzzle. Do it last after you have done the bigger suspension mods from spl