Not sure on a 84 but my 80 toyota has a adjustable rod on the slave cyl. The po had it out of adjustment and my clutch would slip. I shorten the rod and it grabs alot better now and I haven't had it slip sense. Just my two cents.
Mike


1980 Toy, Dovetail, Chevy 60/14, 5.13 gears "Wheeling isn't cheap anymore"
http://www.texas4x4.org/gallery/MikesToyota