Hi,
Probably not a valid build solution, if you just upgrade the suspension arms and not the address the other more demanding turret issues. Why?
The Tamiya Leopard 2A6 1/16 rc model history is that it was first commissioned to Tamiya as a corporate presentation model project for Krauss-Maffei and others, then brought to market by Tamiya as a consumer kit. While a flagship Tamiya model, it was not initially purpose designed as an IR outdoor fighter, so in that regard the Leo 2 kit falls well short of the durability performance of the Tamiya WWII rc tank kits. If one actually builds and runs the Tamiya Leo 2 as an infrared fighting model or even as an occasionally used shelf queen runner, you will soon discover just how important it is to address the tank battery location; due to the structural damage that can be done to the plastic turret by the heavy tank battery resting inside. Next turret issue; just how easy it is to upset and damage the turret wiring doing battery swap outs and moving the battery to the hull means you to not need to open up the turret anymore, and that is a good thing.
Anyway, I did use the Impact – Mitosal metal suspension arms, because my build goal was to take the model to the next level past presentation model status and turn it into a very cool tough backyard IR runner, hence the various design improvements to help reach that objective.
The model is going on 6 years old now and has held up brilliantly thanks to the application of Daryl Turner's vision, engineering design and fabrication modeling skills.
John