Sending CAN data with 29-bit ID

I'm successfully receiving 29-bit messages, but can only send 11-bit messages. If I try for larger, it cuts it off. I'm not too familiar with navigating the libraries to make the changes I need. Any suggestions?

Apparently the answer was right in front of me. // send data: id = 0x00, standard frame, data len = 8, stmp: data buf CAN.sendMsgBuf(0xFFFFFF, 1, 8, stmp);

Had to set "standard frame" to 1 instead of 0. :)