partitioning - Can I safely create a new partition between two others?

I am about to install Ubuntu alongside Windows.
My disc is partitioned like this:

/dev/hda1 - system reserved (windows)

/dev/hda2 - ntfs windows users

unallocated space 100Gb

/dev/hda3 - FAT other data 60Gb

Can I create an extended partition in the space BETWEEN hda 2 and 3?
Will hda3 be renamed and if so, will that lead to data loss?
Data is backed-up.