2001 qx4 creaking sound in back

[alawode]

i have a 2001 infiniti qx4 that makes a creaking sound at the back when the weight of the car is on the rear tires. I changed the shocks but it still makes the sound, what could it be?
Thanks in advance

[miamiheat3332]

Is it also when you go up like an uneven driveway entry or something of the sort?

im positive is probably the springs making that sound, as with my lowering springs i usually get that too especially cause my rear doesnt flex anywhere like it does on stock springs.

[alawode]

Thanks! can i get these at autozone and are they easy to install?

[alawode]

Any help???