Join Date: Oct 2007
Location: Middle VA
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1) I would not suggest using any spring seat style lift over 1". Just my personal choice. I ran a 4.5" with a 1" spacer back on my 2006 using proper steering adjustments is was just fine.
2) One should always check the alignment after a lift is installed. For any 2"+ lift I would suggest to plan on using a trac bar drop bracket and/or and adjustable trac bar.
3) The only real way the ride changes from stock is new springs or new shocks. Change either one and the ride will change.
For the lift itself you biggest issue will come with caster change and possibly shifting the axle. The axle shift is easy to correct/prevent with the trac bar drop bracket or adjustable trac bar. Caster will need to be corrected with new adjustment parts (shims: not sure of the proper name), new radius arms, or the OEM radius arm drop brackets.
Remember even adding the Rough Country spacer adjusts a bit more in the whole geometry of the steering than one may think. If you can draw out a simple geometry diagram, your math will show you what changes and how even 2" changes things beyond specs. The trac bar frame bracket changes position, the front axle pinion angle changes....when those points aren't "adjusted back to OE specs they "pull" all the other components out of spec. Axle will shift, steering caster changes....all cause of 2".
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