Ok, thanks for the replies! So if I leave auto-ride/auto-level in the rear without a spacer it will still work. If I use a spacer, get an extension for the system to work, right?
As far as the magnaride and ride height question, I have not done anything at all yet..Magnaride? I do not think I have that on this year model.
As far as the Ranchos versus Bilstein. I am a bigger fan of Bilstien, but have noticed I get more life out of the Ranchos up front. I think its the environment I drive in. I do run them on my current truck but the past Ranchos held up longer...I will be running the Bilisteins on the rear, just havent decided if the Arrnott/Bilstein autolevel ones or "true" 5100's with the auto-level delete. If I remove the rear auto-level and compressor, do I need different rear springs?
NOTE: When I say enviroment, I am meaning the "Haul" Dalton Highway in Northern AK. I run up that a way quite frequently. Its hard to describe unless you have done it. All lot of the commercial guys that run that road yearround reccomend Skyjacker shocks actually!