Originally Posted by
jessele
anyone selling a lower tamiya carbon deck (13408014)?
I'll probably start assembling my kit this week, what extra size shims do I need?
3mm shims for steering (Item# 53585)
5mm shims for the internal input shafts (Item# 53587)
10mm shims for the differential and spool outdrives (Item# 53588)
The kit comes with some of these shims already, but having various thicknesses (0.1mm, 0.2mm, and 0.3mm) on hand will allow you to shim the gears more precisely.
Use the kit shim settings as a base, then check for feel from there. The key is getting the proper backlash between all the internal gears, the same as you would a pinion and spur.
The gear boxes should be free spinning and without bind once the upper covers are in place and screwed down.
As mentioned in the TB04 thread and elsewhere in this one, shimming the gearboxes properly takes patience, but is definitely worth it.
For steering, my TB04-R required a few extras to take out slop, but my Evo was perfect per the manual, it could be different on your build.