Originally Posted by t147
no, an alignment is not needed. You can ask for a check if you're concerned and that is usually half the price of the actual alignment.
Yes Ebay was the only place I could find them as well.
Yes an alignment IS needed.
Since we're speaking of Auto Spring, go to their site and download the install instructions. It'll tell you right there. You could also call 'Kevin' the owner of A/S and he'll tell you the same thing. It throws your camber off. Just because you may be able to drive your truck down the road after the install and have it track straight down the middle of the road, it doesn't mean you aren't out of alignment.
What MIGHT be the point of confusion is whether or not you need aftermarket alignment cams. I can only speak for the A/S 3" spacer, and the answer is NO.
Again, calling Kevin will verify this.
As far as contacting him/Auto Spring:
To answer the questions 'How tall' and 'how much'..? The answer is, it depends on your truck.
My rake was 3", a buddy of mine with the same truck but shorter bed had a 2.5" rake, people in this thread are saying they had a 2" rake.
You have varying 4wd models in the lineup that come with different shocks/springs, which in and of themselves create different front-end heights.
You also have different size wheels and tires installed on the various models, which also contribute to varied vehicle heights throughout the model line.
Lastly you have the (apparently) wide range of coil-spring tension(s) even within the SAME model/trim level.
As Kevin at A/S put it, 'you can line up 10 different F150 FX4's and have 10 different vehicle heights'.
Obviously 'how tall' will depend on the above, plus how much you raise your front, and what size tires you install afterwards.