Originally Posted by mr lee

that is all you need!

You may want to look at getting the aluminium cross joint and the steel gears however if you build the diff with a 0.3mm shim either side of the casing (underneath the big bevel gear) then you should be fine.

The TA06 kit instructions showed it to use 2 (or more if required) 0.1mm shims which would bow and then cause the small cross pin in the outdrive to wear the bevel gear to a point where it would just spin and not have contact with the gear!

The FF03R instructions show a 0.3mm shim as do all the new TA06 gear diff spare parts kits that now come with the steel gears.

Your best bet would be to buy this new TA06 gear diff with the steel gears and ali cross joint so you can put it in and forget about it

54471 - Tamiya Steel Gear Differential Unit Rear TA06 TA06 PRO FF-03R XV-01