okay... my 89 Nissan truck is losing brake fluid that supply's the clutch...it has done this before and i simply filled/primed it and it was fine even after 7 days of constant driving but today it goes out on the highway and i had to force it out of gear and i checked the clutch fluid and it was GONE and i had to be towed yet again back home i need this truck for what i do so any suggestions?

Well i found what was wrong...my Clutch Slave Cylinder was busted and leaking every time i shifted..

okay...taking off the Clutch Slave Cylinder it fell apart right in my hands....so...i was driving on a thin line because my brakes run on the same lines.....i am lucky i caught this or i could have has a accident (if you are wondering how i update so fast i use a laptop as a haynes manual and so i can keep you guys updated)