Ordered a core support for my 1996 f250 7.3l power...

Ordered a core support for my 1996 f250 7.3l powerstroke diesel well when got it it was for a gas truck I'm not sure if they know the difference between a gas truck and a diesel was not really worth $300.00 now I guess I'll have to jump through hoops to try and send it back very disappointed with this