Sounds to me like they sent you the wrong shoes,the pad thickness should be the same,just longer on one shoe.
Also the metal part should be the same on both shoes.
_____________
Floyd
If we choose being kind over being right,we will
be right every time.
Knowledge is a poor substitute for experience.
Remember what is precious to another, may not be to you, but it
is precious nonetheless.
1948 Chevy 2-Ton 
