nytrdr24
+1y
that is the slave cylinder, it moves the clutch fork that holds the throw out bearing......you can get a new one or a rebuild kit for it at autozone, orileys for under $50, need to check to see if the line is busted, these trucks are old & the line that comes off the fire wall could have cracked....., not hard to fix, two bolts, remove the line, & put it on the new one, add fluid to the reservoir & bleed it like your brakes.