I got the full kit from ToyotaTerritory, and paid $1395 for it.
(You could find pictures of the kit from the this post:
07-08 Tundra TRD Lowering Kits)
I installed the kit myself, without power tools; it took me two days to complete.
The kit supposes to give a 2/4 drop on the truck. I didn't measure my truck before the installation. So, I am not sure what the actual drops are.
The problem i came across is the bolt and nut used to connect the end line to the sway bar. They cross thread each other. See picture below:
The one on top came with the kit; the one below is the replacement i got from hardware store.
No dealer has the top lock nuts for the front shock. I wait for a week, and my local dealer still couldn't get them. So, i re-used the nuts came off the truck. Here is a picture for the front shock installed:
Here are pictures after the installation completed:
The ride was a bit rough than stock but it is not too far from it. However, I haven’t got the alignment done yet. I don't want to rate the ride yet.