Upgrading Heng Long Tanks - Gearboxes A Step By Step Visual Guide Can be used to replace worn gearboxes with nylon gears with a replacement or to upgrade to a pair of metal heavy duties gearboxes. Click here for more information on Heng Long Tanks.

1. Unscrew gearboxes (left & right) from lower hull.	2. Remove motors from gearboxes.	3. Check that new (metal) gearboxes are greased and can move freely.
4. Fit motors into new gearboxes.	5. Fix new gearboxes with motors into lower hull.	Hints: Use a screw driver with a magnetic head (or bluetack) to hold screw in place when fixing gearboxes to lower hull.

If you are upgrading to metal heavy duty gearboxes, we recommend that you also upgrade the plastic sprockets to metal sprockets at the same time. Upgrade to metal heavy duty gearboxes and metal sprockets is recommended if you intend to run metal tracks on your tank.

Note that no soldering is required! All you need is a set of screw drivers.

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