Macone234

Is it possible to convert a Tamiya nitro chassis to the 2speed transmission like the Tns. The chassis I have at the moment looks very similar to the Tns but only has single speed transmission but a larger engine, (0.21instead of 0.15),but it still is only a 1/10 scale.
If it's possible please can you give me an idea of the parts required.
Many thanks
Macone234