Older Clark, C500 y50.
Sat for years and im bring back to life.
Shortly after i got it running / moving it around it blew one of the crunchy lines
Pulled the 3 hyd lines going in and out of radiator to trans and filter housing to have made up.
Now need to figure out what fluid was in it... was dirty / black but feels like atf. Unsure.
Trans has the 2 lever on left side dash H/L F/R

Serial number
Y355-463-2530 471


If anyone could point me to proper fluid for this and possibly the model year of this thing.
Thanks