Clanklng in left drive wheel - Jet 3 Ultra Power Chair

It's possible that the clicking noise is being caused by a loose or worn-out component within the left drive wheel of the Jazzy 300 power wheelchair. The tightness of the wheel could also be contributing to the problem.
To diagnose the issue, you may need to inspect the left drive wheel and its components, including the motor, axle, bearings, and any other parts that may be causing the clicking noise. Tightening any loose components or replacing any worn-out parts may help to alleviate the issue.
It's always a good idea to consult with a professional technician or the manufacturer of the Jazzy 300 power wheelchair for specific troubleshooting advice and repair recommendations.

turf mode is where only one wheel is powering the sportsman.
sounds like the left wheel is the one that would drive it.
i can not figure out if it is the rear left wheel but it may be. i would see if there is a problem with that.

Replace both front wheel hub bearing assy's

Likely its the wheel bearings have siezed up

that would most likely be your drive axel when they go bad they click when you turn the steering wheel

All Wheel drive, you have all four wheels working at once. Where four wheel drive you can turn off to 2 wheel drive.

hj there this is perfectly normal because the left wheel is the drive wheel on a basic front wheel drive gearbox,Check if the shaft is not bent secondly inner CV TRIPOD could be worn. Left front chassis leg could have bent due to accident or impact .Outer CV my have been fitted incorrectly.

Not understanding you 3 wheel drive thing, But I believe that the Xterra are a front wheel drive based engine and if that is the case most front wheel drives will pull to right at excelleration and then to left under letting of excellerator. This is do to engine torque but if it is extensive you may want to check motor mounts.

Take it in for proper diagnosis - that's not supposed to happen in an 'ALL WHEEL DRIVE' - all WHEELS ARE SUPPOSED TO TURN.

wheel bearing bad.