They often send the wrong part, then there is no o...

They often send the wrong part, then there is no one to call or email. Strange. My F150 Lariat 4x4, 5 4L have different size caliper pistons based on vehicle GVW. Mine is 720, others are 770 and there may be more...then some calipers don't report GVW BUT IT HAS A HEART for your vehicle? Wrong part!!

And one to call!!!!