[suicideneil]

1) parts are impossible to buy, you may find some on ebay sometimes though. Your best option is to swap to the newer style slipper used on the current traxxas 4x4 trucks.

2) You can use the nitro revo/t-maxx spur gears that are mod1.0, they are different sizes compared to the 32pitch gears so you will need different size pinions to compensate.