Okay Stovebolters my truck is now undriveable and I need some direction:
When driving the truck if I hit a bump or sometimes randomly it will begin to squeal, very loudly. It stops only when you stop and are at zero speed. It does not squeal at idle or when revving it in neutral. It still squeals with generator belt removed. Clutch is correctly adjusted for pedal play about 3/4” of travel before it engages. As above I cannot replicate with the truck in the driveway it only happens at speed. Is this a harmonic balancer issue or something else? Truck drives fine except for the intolerable squealing. Engine is a 1954 235, rebuilt by the previous owner, it has 15,000 miles on it since it was rebuilt in 2006. Thanks for any help.
