A tutorial video on how to replace a stock plastic gearbox with a Heng Long steel gearbox on a 1/16th scale RC Heng Long Russian T90 tank model. I also show how to replace the stock plastic track, sprockets and front Idler with the metal aftermarket replacement parts. This tutorial will work on all 1/16th scale RC RTR tanks from HL,

More about this model's rebuild can be seen in it's video playlist,
   • 1/16th scale RC Heng Long Russian T90...  

Tiagen Tiger I metal gearbox tutorial,
   • 1/16th scale Taigen RC tank replaceme...  

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