Slipping

I have a South bend cermic / kavlar clutch. The other day while pulling a trailer it started to slip. So I let off it did fine. Now the truck wont go into gear. I can put it in gear start the truck it doesn't move while I have the clutch pushed in. I can float the gears driving down the highway but if I come to a stop I got to turn the truck off and put it in gear?

Any ideas?

I can drive it and doesn't slip till I get off into it.

Mine acted the same, had broken two of the release fingers off the pressure plate.