Don't think so, ES579 is possibly a car servo originally. Ask the guys to bring them in! Its a good price. JR in the UK did not keep many before I selected it as the perfect steering servo around nine years ago, now they keep good stock as we sell that in all our Xcalibur and Ultra Flash servo sets.

Dave

http://www.jrpropo.com/english/produ...db_flg=eng_db1