Have a stock 02 wagon wanted to put lowerings springs on but i noticed some are 1.5 in the front and back and the other ones are two different sizes in the front itll drop lower then the back is the front gap higher then the rear?

 

I imagine its to compensate for the saggy butt some of the rears have on the wagon. If it looks like your rear is lower then your front maybe you want the offset springs

 

Yup. Wagons sit lower in the rear a little more than sedans. There is also a thing called a saggy butt spacer that help get rid of the sag.