Alignment Difference Question

[rudey737]

I currently have a 4.5/6 McGaughy's drop with 2.5" drop spindles and 2" drop springs on the front. After rebuilding the front end - ball joints, control arm bushings, sway bar bushings, inner & outer tie rod ends, pitman arm, and idler arm - and installing new body mounts, I still have a bit of rubbing up front and a pretty noticeable rake. This is all with 15x7 stock rally wheels and 215/75/15 tires on the front and 15x8 stock rally wheels with 225/75/15 tires on the rear.

I ordered a set of 1.5" Western Chassis lowering springs from Summit on Wednesday night, and they just showed up this morning. I know, that's only a 0.5" difference in the springs, but I'm hoping it'll help with the rubbing. It'll also help level up the front and rear. Right now, my truck has a pretty noticeable rake. I've read that other people have had an issue with the front end being lower than it should be with the 4.5/6 drop from McGaughy's, and that changing out springs has helped.

I'm going to do a before and after measurement on the front fenders to see how much I actually go up between the two springs. My question is, if it's only 0.5" how much can that actually affect my alignment? I'll check the toe in before and after I change out the springs, but I don't think 0.5" will affect it that much. Does anyone have any thoughts on this?