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VehiclesTamiya XV-02 PRO Chassis KitUpgradesXV-02 PRO 58707 rear ball differential

XV-02 PRO 58707 rear ball differential

Tamiya XV-02 PRO Chassis Kit · 58707

Use a rear ball differential when you want adjustable differential action without changing the center drive. It needs regular adjustment and grease service, and any existing 40T axle gearing must be reconciled.

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Parts & installation

Manufacturer documented
Vehicle
Tamiya XV-02 PRO Chassis Kit58707
Position
rear
Change
Replaces the rear oil gear differential with a 39T adjustable ball differential.

Parts needed

Sold packs for one stated conversion
PartQty
22046Complete 39T ball differential and matched 15T pinion1

Manufacturer parts and assembly evidence support this stated scope. No physical installation or measured performance test was performed.

Installation notes

  • Use one complete 22046 pack for one rear axle. It supplies 39T ring gear and matched 15T bevel pinion, ball/thrust hardware, two joint cups, two 850 and two 1280 bearings, axle rings/pins and ball-diff grease. Replace the rear differential, not the center drive.
  • Match the number on the 15T bevel pinion to the ring gear: 39 with 39. If the rear previously used the optional 40T gear, remove that matched pinion as well. Preserve front/rear ratio intent; an unequal 39/40 setup is a separate tuning choice.
  • Apply ball-diff grease to the rings and balls, compress the spring once before fitting and use separately available molybdenum grease on the thrust assembly. Tighten while holding the long joint until the ring rotates with slight resistance, then check that the ring does not slip with both joints held.
  • Insert universal swing shafts into the narrow openings of the supplied cups. Fit the 2x9.8 pins and seat axle rings in their grooves. The installed differential faces the same direction as the original; increased adjustment range also adds maintenance.
  • Retain the exact kit rear universal shafts, wheel axles, rear gearbox casing and suspension. Use the cups and 1280 bearings supplied with 22046; do not purchase an extra universal assembly solely because the differential changes. This scope does not require a center differential or slipper.

Sources

Tamiya 22046 exact chassis applicability (opens in a new tab)
  • Maker product information, applicable models and supporting parts.
Tamiya 22046 original full assembly sheet (opens in a new tab)
  • Maker instructions and assembly diagrams for the stated parts and configuration.
Tamiya XV-02 PRO 58707 stock manual (opens in a new tab)
  • Maker instructions and assembly diagrams for the stated parts and configuration.