i think the instructions are a misprint. the longer the space between the rear of the leaf and your frame, the higher you go....

 

The dimensions of the hole centerline will be modified from stock. If the holes from the frame mount center to the spring mount center is less than stock, I guess it will lower. If the frame mount center to the spring mount center is more than stock, it will raise the truck.

You are essentially moving the spring pivot point closer to, or further from, the body.

Post a picture of your shackle if possible so we can see what this upper and lower hole you're referring to is all about.

 

thats the same ones i have, they lift, just take them out and compare the length to your stock ones, longer the shackle the more lift

 

I almost made the same mistake with the different suspension max(x) sites. The smax with one x is based here in CA... it is not the SMAXX that sponsors the Nation. If the shackles are longer than your stock ones then they will raise your truck's rear, probibly 2 inches. Based on the picture from the smax site it show only 2 holes, one for the frame mount bolt and one for the leaf spring mount bolt... it seems to me that you got the wrong install instructions

 

As the other guys posted, if you lift the rear spring to a higher point it will actually lower the rear. But if you install the shackle as normal, then it just move's the rear of the spring down, which push's the body and frame up. Understand? You CAN do both..but not too many people use them to lower a vehicle.


And springtech, or smaxx, either are fine man. hell mine are autozone $15 cheapo's. Wheel all the time in them never had a single issue with them.

 

Ok thanks guys. I knew how the shackles were suppoed to work and the concept behind them but once I read those directions I was just like :wtf:

 

Yea half the time I don't read directions if its a straight forward thing to do but if its very involved ill read them. Either put a bottle jack between the leaf spring and frame and jack up on it or lift on your trailer hitch to relieve pressure off the shackles. Or suspend the whole ass end and use a floor jack on the pumpkin.