Typically the rear shoe pad is longer. Green in the picture. They can be all long though. Make sure you didn't put two shorts on the other side. View attachment 1715388966
See that bar between the shoes under the wheel cylinder? That's the reaction bar. I don't believe they are on the front, but there IS a return spring that goes in about the same place, I believe. I haven't gotten to my service manual yet. My books are buried because we're still havin laminate flooring put in and everything is in ONE room. LOL
