Will the Lee factory crimp die for 25-35 WCF work for 25-36 Marlin?

Looks like it might, but you will need a shim of about 80 thou for the shellholder. That's the difference in case length.

I have found that there is normally there is enough adjustment in the dies.

To suit your needs.

It worked for me for many years, but today I have a custom crimp die for whatever reason short of I bought a set of RCBS dies with a taper crimp die of unknown make at a gun show and it sure works. Im sure it would work on the 25-36. Id bet its a Lee?? call Lee taper crimp dies cost about $20 as I recall, they at one time custom cut dies for any caliber..maybe they still do..they made them for doubles and big bores and rimmed cases as I recall, worth a call. My dies have a roll crimp and crimp but a taper crimp is much better IMO///