Well actually I think the issue is more with the throwout bearing. The truck is great except on very hot days. Once the truck is fully warmed up, sometimes the throwout bearing will stick and not disengage the clutch or it wil hold the clutch open and not engage the gears. If I let the truck cool down for 30 minutes, all is fine until it heats up again With summer coming up I need to see about fixing this. The truck has 56K miles on it and the clutch. There is no slippage and I suspect the clutch is fine. Reading up it sounds like there is a special grease on the pilot shaft that has dried up. I'm wondering if it is possible to carefully apply the proper lubricant to the pilot shaft (via inspection port?) without pulling the whole tranny out. Has anyone run into this issue and dealt with it?