the guy who used to hang out here who is the dozer expert left, But if I remember those clutches are dry type correct? and I guess remove the floor plates and follow the linkages if you are lucky there will be a inspection cover. I had a dozer once but is was way different than what you have. good luck
Yep meant to be dry, but is the seal leaks they get gummed up. So could be either dry and rust, or oily and gummed… I have dismantled, and it wasn’t hard, but it was too long ago to remember the order of disassembly.