Overview
The Kyosho Diff. Gear Set (52T) (UB039) is a service component inside the differential for the Ultima RB7.5 1/10 scale platform. It is supplied as a genuine Kyosho service part, so the dimensions, material and mounting match the component fitted at the factory.
Tooth count is 52T. Order against the part number rather than by appearance: Kyosho and other manufacturers reuse similar shapes across chassis generations, and the part number is what ties this component to the right parts diagram. Check how many the car takes at this position before ordering.
Key Features
- Factory-dimensioned for correct diff preload and mesh
- Hardened, precision-finished surfaces
- Direct fit in place of the original component
Performance Benefits
- Restores smooth, predictable diff action
- Removes the notchiness of a worn or contaminated diff
- Keeps power delivery even between the driven wheels
Usage Notes
- Rebuild the diff with fresh silicone oil and clean seals.
- Fill to the level given in the kit manual before closing the case.
Technical Specs
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Brand: Kyosho
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Part Number: UB039
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Product: Diff. Gear Set (52T)
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Platform: Ultima RB7.5
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Scale: 1/10
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Category: Differential Parts
Fitment
Compatible RC vehicles: Kyosho Ultima RB7.5.
What's Included
Summary
The Kyosho Diff. Gear Set (52T) is the genuine UB039 replacement for Ultima RB7.5. Ordering by part number keeps the fit, finish and geometry the same as the original.
