Model "Truck T12 MkII Yellow" Mack Granite is build with LEGO® in scale 1:17,5 and motorized using LEGO® Power Functions. It is a model of a Mack Granite 6x4 day cab truck. Also available in Yellow, a solid color that makes it easier for you to change it in any other solid color you like! Both the looks and specifications are adjusted to match lowboy ”Trailer Tr4 MkII” and the optional jeep and booster ”Trailer Tr4 MkII Add1”. This rather heavy lowboy trailer combination, which might include a load, requires some extra power.
The truck features: solid axle suspension on all axles of which the rear axle uses tandem bogie suspension, PF powered driving with power transmitted independently to both rear axles, reduced speed to increase power/torque, Ackerman geometry on steering axle, Servo powered steering, fully functional fifth wheel, fifth wheel slider, modeled engine, detailed cabin interior and 3 light units.
Even though this truck is designed to go with ”Trailer Tr4 MkII” plus ”Trailer Tr4 MkII Add1” lowboy combination in the first place, it doesn’t necessarily mean it can't be used with other available trailers as well. If you prefer to give it a flat bed or log trailer, you are free to do so! If a different trailer is used it might be useful to give this truck's drivetrain a various gear setup. For this a separate PDF file is available that tells you what gear reductions to use with which trailer. It also shows you how to do so. Evidently the torque will be reduced, but with lighter weight trailers that is no problem at all.