I'm looking to modify front/back to accomodate weight of bumpers, etc. Might want to go to 33" tires, so I'm not planning on a radical lift. Two options are appealing: replace coil springs (e.g., Eibach leveling lift kit) or spacers (many brands available). Any thoughts or experience?

And would installation of either then require other modifications to steering, suspension, etc?

Thanks!

 

Look at the TeraFlex 'Performance' leveling kit. It is a coil kit that gives around 1.5"-2" of lift and is supposed to handle the extra weight well. I would choose that over spacers in your situation.

No other components would be needed, but drive it after the lift and all of the weight is on and decide for yourself if anything is 'wanted'.

 

I have the teraflex spacer leveling kit wich is 2" in the front and 1" in the rear. You wont need anything else with it but i would suggest going with springs instead of spacers you will get softer ride out of it.