 This is a replacement HPI "Bulletproof" Ring/Pinion Gear Set, and is intended for use with the HPI Savage X, XL and Flux monster trucks. This is the toughest diff set-up ever for the Savage monster truck line. The ring gear and pinion gears are precision machined from high carbon steel and have stronger gear profiles for the ultimate in durability. The 29T gear is machined to use the included "oversized" ball bearing for extra durability and efficiency.
This gear set was developed for extremely high horsepower applications like the Savage Flux and Savage XL. It's so strong that it replaces the 86922 and 102246 Heavy Duty and Super Duty gear sets, both now discontinued. So if you're using big block nitro engines or high voltage brushless motors, you need this gear set!
Each package upgrades one differential. It is recommended getting a pair of them so you can upgrade the front and rear differentials at the same time. Fits all Savage trucks. Recommended for use with 102272 Composite Gear Box/Bulkhead Set.
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