HPI Monster King spur gear

[Derekpike]

I have a friend who has the HPI monster king (Nitro version of the wheelie king). He keeps shredding the plastic spur gear that came with it (hpi 85625). He's looking for a metal one so he doesn't have to replace this thing every few runs. Any suggestions? I see the HPI firestorm also uses a 53t spur gear, but not sure if they're interchangeable or if they even make a metal one for the firestorm.

 

[Derekpike]

I guess he hasn't used the "paper method" to set his mesh. He's also going to see if it has a slipper clutch and adjust that if so.