Product reviews for Alldogs Offroad Parabolic Medium Load Leaf Pack for 2nd & 3rd Gen Nissan Frontier

So this took some time to install.. I'd recommend expecting it to take all day so when you come across some bolt that's really seized up you are all set.

ALSO grab a 9/16 bit before hand! Save yourself a trip to the store mid way in.

Installed with Bilstein 5100s, backend rides stiffer which is perfect for my camper trailer. Without any load it rides more "truck like" not terrible but certainly firm without weigh.

Good 2 - 3 in of lift, I was replacing stock springs with a 2 in lift block and the truck looks taller.

Very minor negative is paint seems easy to scratch, I resprayed the springs before installing.

My '11 Frontier was getting a bit soft and settling more when loaded. The back end would bottom out over bumps when pulling the camper.  
Put a set of these Parabolic Springs on, along with the Bilstein' s recommended by All Dogs, and gained 3" at the back of the truck.
Now when I hook up to my 21' camper the back end hardly settles and the ride is solid and stable over bumpy, uneven roads.