Do you have the txt file (lib) for the 4301?
Try this:
In ltspice, go to File/Open and open the text file with the 4301 data in it.
Scroll down to the section that talks about the 4301…
There should be a line of text that says "SUBCKT 4301_THAT" or something like that.
Highlight the section name "4301_THAT", and then right click on it… now select "create symbol"… and then it will create a new symbol for the 4301_THAT based on the nodes described in the text after 4301_THAT. Then save, and it should be available in the ltspice devices (mine appears at the top in a new device folder).
Hopefully that helps…
Edit: You may also need to include a spice statement for locating the lib ---> not sure? sorry… I remember now where I learnt the above approach ---> check out this link:
http://www.linear.com/solutions/4678