Apowertrain consists of your vehicle’s engine, gearbox, drive shafts, transfer case, differential gears, side shafts and wheels. In effect the entire mechanism that makes your 4x4 vehicle go.
A drivetrain, on the other hand, excludes the engine and wheels and focuses only on the gearbox, front and rear drive shaft, transfer case, differential gears and all four side shafts.
The final drive of your off-road vehicle only includes the differential and the side shafts. By the way, in a boat, the final drive is its prop, and in a motorcycle, it’s typically the chain and rear sprocket.
A four-wheel drive system involves delivering power to all four wheels as opposed to only the front or rear wheels. All cars, whether front-wheel, rear-wheel or all-wheel-drive, use differential gears.
Why differential gears?…