| Part | Name | Releases |
|---|
| 2053 | Gear set (for 2055, 2056 servos) | 3 |
| 2059 | Gear set, metal (for 2057 servos) | 8 |
| 2064A | Gear set (for 2065A waterproof sub-micro servo) | 2 |
| 2064R | Gear set, metal (for 2065R waterproof sub-micro servo) | 2 |
| 2072A | Gear set (for 2070, 2075 servos) | 7 |
| 2072R | Gear set, metal, high-speed (for 2070, 2075 servos) | 6 |
| 2072X | Gear set, metal (for 2070, 2075 servos) | 4 |
| 2087X | Gear set, metal (for 2085, 2085X, 2085XL servos) | 1 |
| 2252 | Gear set, metal (for 2250, 2255 servos) | 8 |
| 2272 | Gear set, metal (for 2270 waterproof servo) | 7 |
| 2287 | Gear set, metal (for 2280 servo) | 8 |
| 3195 | Top drive gear, steel (22-tooth) | 3 |
| 3691-BLK | Gearbox halves (left & right) (black) w/ idler gear shaft | 3 |
| 3691-GRAY | Gearbox halves (left & right) (gray) w/ idler gear shaft | 3 |
| 3691-SLGRY | Gearbox halves (left & right) (slate gray) w/ idler gear shaft | 3 |
| 3696 | Idler gear, steel (30-tooth) | 3 |
| 3790 | Gear adapter, fixed | 3 |
| 6790X | Gear adapters, fixed (fits Rustler® 4X4 or Slash® 4X4 models equipped with Low-CG chassis) | 2 |
| 6877A | Cover, gear (clear) | 1 |
| 7784X | Output gear, 51-tooth, metal (requires #7785X input gear) | 1 |
| 7786X | Input shaft, transmission (cush drive) | 1 |
| 7787-BLUE | Cover, gear (blue-anodized 6061-T6 aluminum) | 1 |
| 7787-GRAY | Cover, gear (gray-anodized 6061-T6 aluminum) | 1 |
| 7787-GRN | Cover, gear (green-anodized 6061-T6 aluminum) | 1 |
| 7787-ORNG | Cover, gear (orange-anodized 6061-T6 aluminum) | 1 |
| 7787-RED | Cover, gear (red-anodized 6061-T6 aluminum) | 1 |
| 7887 | Covers, gear | 1 |
| 8060 | Axle shaft, front, heavy duty (left & right) (requires #8064 front portal drive input gear) | 3 |
| 8061 | Axle shaft, rear, heavy duty (left & right)/ portal drive input gear, rear (machined) (2) (assembled) | 3 |
| 8062 | Axle shaft, front, heavy duty (left & right)/ portal drive input gear, front (machined) (2) (assembled) | 3 |
| 8063 | Axle shaft, rear, heavy duty (left & right) (requires #8065 rear portal drive input gear) | 2 |
| 8064 | Portal drive input gear, front (machined) (left or right) (requires #8060 front axle shaft) | 3 |
| 8065 | Portal drive input gear, rear (machined) (left or right) (requires #8063 rear axle) | 3 |
| 8258 | Portal drive output gear, front or rear | 3 |
| 8259 | Portal drive input gear, rear | 3 |
| 8285 | Gears, transfer case | 3 |
| 8291 | Gearbox housing (includes main housing, front housing, & cover) | 3 |
| 8292 | Input shaft/ output shaft (transmission) | 3 |
| 8294 | Output gear, high range, 24T (metal) | 3 |
| 8296 | Transmission gears, single speed, metal | 2 |
| 9090 | Gear adapter, fixed | 1 |
| 9090X | Gear adapter, fixed | 1 |
| 9492 | Idler gear, 30-tooth/ idler gear shaft (steel) | 3 |
| 9494 | Input gear, 22-tooth/ input shaft (transmission) (heavy duty) (fits Bandit®, Rustler®, Stampede®, Slash® 2WD) | 3 |
| 9495A | Pro Series Magnum 272R™ Transmission, complete (assembled) (fits 1/10-scale 2WD Rustler®, Bandit®, Stampede®, Slash®) | 1 |
| 9747X | Output shaft, transmission | 1 |
| 12081 | Axle shaft, front, portal drive (1) (assembled with drive gear) | 1 |
| 12083 | Stub axle, front (1)/ portal drive output gear, front | 1 |
| 12084 | Stub axle, rear (1)/ portal drive gears, rear (input gear (1), output gear (1)) | 1 |
| 12096 | Gear set , transmission, metal (high range (trail)) (16.6:1 reduction ratio) | 1 |
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