I noticed some teeth missing from the plastic gears on my 4Tec 3.3 Nitro and am looking to replace them.

Since I bought the car used I have no idea if the gears installed are optional or standard.

Can anyone tell me what clutch and plastic gears are standard for the two gears?

Also does anyone know what the ratio and max speeds are for the optional gears?

I found a chart for an old 4Tec 2.2 but some of the gears and parts are different

I would like to get max speed out of this car