Shock or stablizer drum

I can think of two things not easily seen that can cause a banging when hitting small bumps;
The sway bar end links could be loose or broken.
The rear shock bolts, the lower bolt that holds the shock onto the rear axle, I've seen that mounting hole down there get enlarged, allowing the shock bolt to move about when hitting small bumps, causing a banging sound.
Check those two things out.

another catch 22 question,ask a local mechanic to have a drive and see what he says ,it could be anything from a shock absorber to a bush ,or a marble in the ashtray ,or even a lost spanner under the bonnet thats dropped inside somewhere ,now where has my screwdriver gone??

the balance control bar is loose at the bottom or broken

What you are feeling is wheel hop. One of you tires is seriously out of balance and the shock absorber is no good. Have both chk 'd Good luck, Ned.

Break caliper pins are worn and rattling .

Replace Steering Damper. Looks like a shock absorber by your stabilizer bar. Not that hard to do with right tools.

Power off the wall mains. Open up the machine panel to look interiors. See if any springs or shocks (known as dampers) have broken or come off. The dampers should not slide in & out freely, if they're defective, replace. Tighten all loose wires, which may have come loose, future probs, so you dont have to open up again.

Next level your machine, front legs way up, means your machine is tilting towards you. Then adjust accordingly so that u cannot shake the machine with both your hands. Lock the nuts, only the fronts legs are adjustable, for most machines. (will get back to u)

May check your ball joints and tie rods. Also could be your shocks.
Does it seem like its more shaking on the left or right? or even?

I would not drive it like that. Have them come and get it. I used to work for Gabriel Shocks at the Manufacturing Plant in Oklahoma and can Tell you that you Could loose Control Driving it that way. Warranty will cover it.

It's something in your steering components or you tires. I've seen both. If your tires are pretty good, it could be your steering stablizer. It's like a shock asorber for you steering system. There also maybe some components wearing out in your steering system too though casuing the stablizer to wear out or unable to to asorb the shock from the bump.