Which leveling kit is best for a 2006 f150? I'm not sure what to buy. I see some that are 2.5 in, 3 in, 3.5 in. It's all stock. Are the ones offered on eBay ok?

 

Most people are simply going to suggest what they've used on their own trucks. I have a 2006 FX4 and I have a Rough Country 2.5" level on mine. It makes the truck sit dead level with the rear and looks great. I bought it straight from their website for $99 plus shipping (might be free). I have no complaints about mine and I'd suggest it to you. Of course feel free to let others chime in as well.

As for the ones on Ebay, I don't know. "The ones on ebay" is pretty vague. I'd suggest just going with the Rough Country. It's only $99 which is very reasonable and it's from a trustworthy company.

Ford Suspension Lift Kits

 

What's the install like? Did you have it done or did you do it yourself?

 

I had it installed by a shop. Install was real simple. Here are the instructions: http://www.roughcountry.com/install/570S.pdf

The shop did it in around an hour no problem.