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Showing results for tags 'tractor 4wd drivetrain'.
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hello, i bought myself 2 of those new tyres (from 42129) and thought they go well together with the old 42099 tyres make a tractor (something I always wanted to build) :-) now my question is (please redirect me if necessary, but I couldn't find such a thread anywhere): - can you think of any existing drivetrain instructions for 4wd with smaller tyres front and bigger tyres in the back? I really only ever found LEGO tractors with 4 identical wheels.. - since the big ones are roughly 33% bigger in circumference, do I need to have the front axle turn 33% faster with some extra gear combo? or just include a center diff? Many thanks for all possible hints and tricks!