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This kit is for those who already own MK3 modules and would like to upgrade them to MK4 modules. More information on the MK4 module can be found on the MK4's product page.
Please note that because the bevel gears used on the MK4 and MK3 module are different ratios, installing this kit will result in a 33% increase in free speed. Standard gearing MK3 modules will turn into L3 MK4 modules and fast gearing MK3 modules will be L4 MK4 modules. To maintain similar gearing the first and second stage gears will need to be changed as well.
For all the parts included with this kit please reference the parts list.