If you haven't purchased a thumbstick replacement kit with superior tension and control for your own Astro C40 TR, be sure to click on the following link to purchase one: https://www.evilcontrollers.com/astro-c40-tr-thumbstick-kit

STEP 1:

Gather pieces needed for assembly:
+ Astro thumbstick
+ Evil thumbstick assembly
+ Evil Stick
+ T6 Screwdriver

STEP 2:

Using the T6 screwdriver, remove the TWO (2) screws.
Place them in a safe area, as they are small and easy to lose.

STEP 3:

Remove the casing from the Astro thumbstick assembly,
then place it over the Evil thumbstick assembly.

STEP 4:

Using the T6 screwdriver, replace the TWO (2) screws.

STEP 5:

Your Astro thumbstick is now EVIL!

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