From all the posts I have read it seams the Pro-comp has a tendency to sag in the rear end.

What is the best way to fix this?

2nd question is does the Fabtech do the same thing and if not why doesn't it?

What is the difference between the 2 kits?

I'm picking one of these 2 up first thing tomorrow morning and want to sound halfway intelligent when talking to the rep on the phone. Thanks to all that have helped me out so far

 

well i put a 4" block and 1.5" aal both made by pro comp for my pc stage 1 lift

 

Did that make your truck sit close to level with no load?

 

yes it was dead level, fabtech i think uses a 5" block so you should sit level with it, and if you went with the pro comp they also make a 5.5" block

here is a pic of my truck before the bilsteins

 

I have the Pro Comp stage one lift on my truck. They only give you a 3 inch block to stack on the stock block. It just dosnt raise it up enough. I took my truck down to a local spring and axel shop. They added a leaf, re arched the leaf pack and took out the 3 inch block. Now all I have is the stock block and the truck sits level.

 

Well I bought the add a leaf so I'm hoping that will work.