I'M TRYING TO PUT THE BALL STUD SEALS ON THE BALL STUDS,BUT WITH NO SUCCESS. I PUT SOME GREASE ON THE TIP OF THE BALL STUD AND ON THE SEAL BUT STILL CAN'T GET IT ON. THE HOLE ON THE SEAL IS ONLY A QUARTER OF AN INCH, IS THERE AN EASY WAY TO STRETCH THE SEAL LIKE HEATING IT OR SOMETHING?