Welcome to iRV2
Sorry your first post is about problems .
Yes ; it's a part manufacturing defect , the part was installed by the chassis manufacturer , so that's who to contact about warranty replacement.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.