Complex sentence: Rear AxleAll early MGB's used the "banjo" type differential carried over from the MGA with the rear axle ratio reduced from 4.1 (or 4.3) to 3.9 to 1.
Split into simpler sentences: Rear AxleAll early MGB's used the "banjo" type differential carried over from the MGA. The rear axle ratio was reduced from 4.1 (or 4.3) to 3.9 to 1.