I installed these things on a reccomendation from a friend who owns a Tacoma and I wish I hadn't. They were installed professionally with the required gap and man, oh man what a pounding they make on a less then perfect road with no weight whatsoever in the bed. Even with just me driving on some bumps in the road the truck hits hard, hard enough to feel it in my back. These things have no soft lead in transition at all, in other words, non-progressive! I took them off and went stock until I figure out something else. On a smooth road it's fine but any bump whatsoever you'll feel it. Anyone else find them rough? I took them back today for a refund!
FYI, my truck is Canadian so it has a 4 leaf pack. I just installed a Cap on the bed and even though it's still higher in the rear the leafs are almost straight. Shouldn't there be some arch there?