#create vfat filesystem file 
mkdosfs -C temp_file 1000000000

#check file size
ls -lh temp_file #fake size
ls -sh #real Size

#get real size in KB
ls -s temp_file

#As ROOT (Not SUDO)
head -c [size_from_above]K temp_file > /dev/sdc1
#umount and remount

#label Drive
sudo mlabel -i /dev/sdc1 ::"1TB DRIVE"
#OR
sudo dosfslabel /dev/sdc1 "1TB DRIVE"

#filelight is a good visual of disk usage
#df -h will show it was a TB
#Gparted is not fooled
#fdisk is not fooled

#use fdisk and mkfs.vfat to recreate partition to fix