Clutch Help!

[Hawks]

So i replaced the clutch in my 60 c20. Im running a 305 with 3 speed overdrive. it has the original bellhousing with slave cylinder. i got a clutch kit for a 60 C20 and all the parts were the same. with a 10'' clutch, throwout bearing pressure plate ect. now when i have it in i can't get the clutch to disengage. When i look at the clutch disc with the clutch pushed in it has good space between the pressure plate and the flywheel. but cant get the clutch to move. I can make it move a little by putting a screwdriver in the drive shaft and makeing it turn but barely. and i checked the input shaft on the trans before i put it in to make shure it turned freely and it did. I really need the truck back on the road because its my daily driver. its driveing me crazy trying to figure it out. thanks for any info to help.