MK3 to MK4 Upgrade kit
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. To maintain similar gearing the first and second stage gears will need to be changed as well.