Does converting from 2WD to 4WD affect annual inspection?

[GenevieveMarie]

Converting from 2WD to 4WD affects annual inspection and will result in failure to pass. The vehicle's drive configuration is recorded in its documentation, and changing to 4WD alters this configuration. For front-wheel drive vehicles converted to 4WD, modifications typically involve installing a rear axle, adding a rear differential, driveshaft, etc. For rear-wheel drive vehicles converted to 4WD, it requires replacing the transmission and adding a transfer case, front differential, driveshaft, etc. Converting from 2WD to 4WD involves numerous component changes and poses significant safety risks in the long term. Annual inspection, or vehicle inspection, is a yearly or biennial safety examination of a vehicle, covering comprehensive checks including the horn, brakes, axle weight, chassis, ignition system, lighting system, exhaust system, license plate installation, and more.