10 days ago I installed the Icon 3 leaf progressive add a leaf on my 06 Tacoma. It replaces the overload leaf. It rides firmer but is not even close to harsh, and is a big improvement. I'm very satisfied so far. It added 1 3/4 inches of lift initially but has settled to 1.5 inches.
I was looking for an add a leaf for a long time before deciding on this one. Off road Warehouse had the pair for $162.99. I had the TSB done about 16 months ago, but the ride deteriorated again to the point where the bump stops would hit with 100 lbs of gear in the back. I also carry a fiberglass tonneau cover which weighs about 100 lbs. I think the extra weight of the cover shortened the life of my springs.
To anyone looking at this add a leaf, go for it. It was a fairly easy install.(one afternoon in my garage). One must be very careful of the brake lines, they were stretched to the max to get these springs in.
Now for the front.??? Right now I am looking at sway away 2.0'S as they seem to be priced well. I'm driving mostly rough roads, looking for 1.5-2 inches of lift in the front to run 255 75 17. Anyone with out there have similar setups?