Brandon Cannon

I just replaced the magnetic shocks on my 2018 GMC Sierra Denali. After I was done I noticed my trucks front end lower than before. Coming out of dollar general my tired scrubbed the wheel well. What would cause my front end to be lower now, if the shocks were the same size and supposedly fit my truck. Could the shocks I purchased be bad? Is there any computer programming that needs to be done? As you can tell in the pictures the front is really low but the back is normal