A knocking noise can occur from worn engine mounts. When the rubber insert on the engine mounts are old and brittle the chassis is not protected from the weight of the engine. Creating loud vibrations that get louder as the vehicle goes faster.
what kind of noise?
The knocking noise could be one of several things. The wheel bearing, a worn steering or suspension part, or road debris could be causing the noise.
Take the car to a large parking lot and turn the wheels while accelerating moderately; with the wheels still turned, stop and do it in reverse. Listen for any clicking, knocking noise. By loading the bearings in forward and reverse a bad CV will usually make noise.
A cracked flex plate (flywheel) could be your problem.
The knocking that you are describing reminds me of a stuck universal joint. A bent axle usually wears tires out very fast more than making noise.
I experienced a knocking noise in my 03 Xterra and found out is was a bad wheel bearing seal and had to have the Nissan dealership replace it for about $400 (includes labor and parts).
tie rods
If the chirping noise speeds up as the truck speeds up, check the u-joints in the drive line.
Friction in the transmission system may cause whining noise when a car is accelerating. A poor engine or clutch assembly may cause the excess friction in the transmission system.
hi it sounds like your universail joints or tail shaft
You rolled over a batch of chewing gum which then had gravel stuck to it.
If its a high pitch squealing while accelerating, then the previous owner may have turbocharged, or supercharged the engine.