Advice on 1985 FLC Daycab Bouncy Ride???
I bought a 1985 FLC Spring Ride Daycab that I use to haul logs for a living. Here is my question: At certain speeds my Truck has a bounce in it, not a vibration but a bounce up and down kinda like riding a horse. It does this at 45 to 50, and 65 to 70. It does not matter if it is going up 45 to 50 or coming down 50 to 45 etc., it will still do this.
I even had a mechanic drive it to see if he could figure out what was causing this, and he didn't have a clue.
I had new steer and drive tires put on in hopes of this curing this, but no help. Even had the Truck jacked up on blocks and ran it to see how the tires were running, and nothing.
One other thing that it does, it only does this if I am either bobtailing, or unloaded??
Any advice would be greatly appreciated, as this is really getting on my nerves.
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