Retiring 4104 - Which parts to save?

[mamacakes]

We have a 4104 what we had trouble finding is the dash gauge's ! Any part that is associated to the speeddometer. Ors is missing the part in the rear of the bus that the speedometer cable hooks to very hard to find part! Any enigne part expecialy the clutch and flywheel. Glass any seal's that are still good and not dry and cracked .