Nick, welcome.
The short answer is yes. The Fox Tango web site
http://foxtango.org/foxtango001.htm is an excellent source of information on older Yaesu radios. You should look at the FT-101ZD Survival Guide at:
http://www.foxtango.org/ft-library/F...T-101ZDSG3.pdf
You will see that there were four different versions. Mk0 did not have an AM or FM option. MK1 and Mk2 had the front panel marked for the AM option only. The Mk3 had the front panel marked for the AM and FM options, but only one could be installed. There are pictures of the AM (PB2040) and FM board (PB2218) on page 11 of the guide. It should make identification straightforward
HTH and 73
John