New starter loud banging noise when u start it

sounds as though your load might be off balance, and I would make sure the tub springs are intact.

This is a hard problem to describe, I know, and I will toss out a few possibilities. If the noise occurs when the car is accelerating, it can be motor mounts, or carriage mounts on front-wheel drive vehicles. Transmissions can bang into gear. Drive shaft u-joints can bang before they fail. C-V joints in front wheel or 4 wheel drive units can bang when worn out.

The exhaust system can break loose and bang on the frame. Brake calipers can rock in their mounts and transmit sound. Tie-rod ends can make a knocking noise on every bump you hit. There were recalls on gas tank straps for some Ford made units, so a loose gas tank can bang.

check for loose track rod ends.

the starter may be loose or the fly wheel cover

check timing timing belt water pumps do make big bangs

I agree with the axle CV joint choice.
Could also be a brake or wheel bearing failure, but the CV joint is the most likely given the symptoms.

starter might be loose not catching the fly wheel

CHECK BRAKES, THEN WHEEL BEARINGS, THEN STRUT AND STRUT MOUNT

Probs with torque converter are slim. It would still move unless converter broke completely loose. Check fluid level. Could be out

It is probably the wheel bearings they have been known for that.