So I went a little wild on upgrades for my Typhon this past week (my sons hpi too lol ). I’ve rebuilt and changed diff fluids, (recommended here). Upgraded to aluminum on several parts; center diff cup and mount, chassis braces, reared diff housing,(ordering front tomorrow) wheelie bar, servo mount and horn, rebuilt the shocks, a few other maintenance parts and probably my would be the 2.8 trenchers! Absolutely a blast to play with now! I loved working on it and doing these upgrades. What should I do next? Running 6s and 16t pinion. Anything I need to do to make it hold up better with the bigger tires? Go to a smaller pinion? I also noticed the servo having a harder time turning the tires while on the grass.