Anyone used this KIT made by UninterRC before? I couldnt find anyone who bought this in other forums

https://www.uninterrc.com/urc0210rpm

it allows to use the LST2 differentials on the E/T-MAXX, it looks like its 3d printed made from nylon plastic which means its not as strong as injection moulding but could be up to the task...
The adaptors should certainly be fine i dont think there would be any issue, its the colar that i am thinking about....