JD350b Fuel and Clutch problems

[de4th98]

First problem, I have a john Deere 350b and every single one of my fuel lines leak where they thread on either at the injectors, the fuel pump or anywhere else at has fuel. Does anybody know where or what seals are used to stop all these leaks. I was trying to just buy entire new lines and replace them all but I cant find anywhere that sells them.
Second problem the dozer works great in reverse but after about 20 mins of working it will start to I think slip in forward, it'll just stop moving and yes iv checked the PTO on the rear and it is still spinning when it is doing this. If you mash the clutch pedal a few times it will work again but it will stop moving again rinse and repeat. Is there another clutch that has to be replaced in the transmission? I have already rebuilt both final drives.

[Lavoy]

No new fuel lines available, seals are an injector shop or Deere item, most likely Deere.
If the PTO spins, the steering clutches are the problem.
Lavoy