LOSI JRX2

[ARDRIVER]

I just did a search for a LOSI JRX2, and got to this site. I have no clue what I am working with since I was just given the car, 12 motors, 6 bodies, and a bunch of misc accesories. Anyway, after reviewing the manual that is posted here I have a better clue. I ran the car hard after I had a new battery pack made, and ended up burning (shredding) up the 48 pitch diff gear. Without so much as anyone making replacement parts anymore, I've tried retrofitting some other nylon gears, and still same result. My question is does anyone know where I can find the 48 pitch diff gear, or is there someone who has done a mod on the diff that caan help me out. I have someone cutting a different set of gears (steel) on a CNC, but would really like to find a reliable source for replacement parts if needed. I am into planes and heli's, and this being my only car (right now) I'd like to work with it till I can be proficient. Thanks for any help in advance.
John