but is a ball diff (with good quality balls) cheaper to produce than a gear diff? the gear difs have a steel crown wheel, would a plastic or steel be better on a ball diff, would a plastic crown gear lighten the diff to ball diff weight? which is better in a budget car? a gear diff or an adjustable ball diff?
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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