In addition to the gears, there's also the axle ratio to consider.
And that will be quite short for the T4, accordingly

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"Which gearbox did your uncle replace the A-bearing on?"
For Golf 2 and smaller G3 gasoline engines (with the 020 transmission), the clutch disc pressure plate is located on the outside, as the pressure plate sits at the very edge and presses against the clutch via the hollow-bored transmission main shaft.
This shaft-in-tube assembly tends to rattle, especially when you're stopped at a traffic light with the clutch disengaged.
To my knowledge, on the G3 GTI 16V, VR6, and TDI models (with the 02A transmission), it is NOT possible to replace the clutch release bearing from the outside, as the bearing is located INSIDE the transmission bell housing.
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