My cousin is trying to put on his seat covers on his 2001 f150 buckets and cannot remove the headrests.Anyone know the secret ??

 

Well, my '01 Super Duty has a button on one side which you depress to adjust it, and a little recessed button on the opposite side, which you push in w/ a screwdriver to pull the headrest right out! Maybe the 150 uses the same arrangement. Good luck.