Granite Wanted to know if i needed anything else for arrma granite boost 2x4

[Mangusdylan]

Hi i need help because im new into the hobby and i have recently purchased the arrma granite 4x2 but i have already made it 4x4 and i wanted to know if I needed anything else other than the arrma boost box 3s conversion kit to make it run properly like if I need new metal differentials or anything

 

[Cypher]

https://www.horizonhobby.com/produc...r-module-upgrade-set-boost-box/ARA210005.html

If it's this one you have in mind, it seems to be sufficient. I know the mega 4x4 have different tie rods than the 3s, so I guess the boost also have non-adjustable tie rods. But that doesn't matter that much, unless you change shocks too. (Stock shocks are same on boost,mega and 3s as I can remember.)
Metal diffs is optional, stock 3s comes with plastic diffs.