I'm not sure how many miles are on the clutch, as I got the truck with 90,000 miles. I will try to inspect it, however, it might be time to replace it anyway. Would there be any benefit of going to a double disk clutch?

I don't see any leaks, but I haven't looked too closely. I'm thinking if I can't find anything, I should just replace the master and slave cylinder to rule those out, and then go from there.

I don't want to do any further damage to the transmission; I just hope I don't have to replace everything as I'm hoping to get a different truck in the next few months.

 

I think its more likely to be a hydraulic problem, than a clutch problem... generally, worn clutches slip, not refuse to release......

 

So replacing both the master and slave cylinder should take care of my problem? The truck shifts nearly perfectly after it has sat for a few days, and then progressively gets worse the more it is driven in a given period.

Also, how difficult is it to replace the master and slave cylinder?