Turnigy Trooper "Diff Case"
thingiverse
This is a custom basket for front and rear diffs designed specifically for the Turnigy Trooper. Unlike the original model, this part does exist for the Turnigy Trooper Pro (https://hobbyking.com/en_us/34573-diff-case.html). However, I'm uncertain if it will fit the "old" version. With this basket, you can easily create a locked diff - all you need is a 5mm drill and a 2mm pin. To add extra strength to the assembly, I used epoxy glue around the pin. A Sketchup file has been attached for you to edit the part to fit the bevel gears (https://hobbyking.com/en_us/diff-bevel-gear-s-w-shaft-1pc-bag-a2016t-and-a3002.html) and obtain a stock open diff.
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