Steel Helical Diff Ring/Pinion: BLX 3S 4S
$70.88
Skip to product information
Only 3 Left!
Steel Helical Diff Ring/Pinion: BLX 3S 4S
$70.88
Heavy Duty Steel
Maximum drivetrain strength and endurance
Helical Tooth Cut
Smoother and quieter gear mesh
Direct OEM Fit
Seamless drop in upgrade design
In Stock
Precision Differential UpgradeEngineered For Extreme Brushless Bashing Power
Upgrade your ARRMA BLX 3S/4S RC Car drivetrain with the heavy-duty Steel Helical Diff Ring Pinion set. Engineered to reliably handle high-torque brushless motor systems, this differential gear upgrade increases durability for extreme off-road action. Protect your vehicle against gear stripping during high-impact jumps and hard acceleration.
Built For Hard BashingEnhance Your ARRMA Drivetrain Gear Reliability
The Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S is crafted to withstand the immense stress delivered by modern high-performance RC power systems. Featuring precision-machined helical teeth, this differential gear set provides smoother gear engagement, reduced drivetrain noise, and superior torque transfer compared to standard straight-cut options. Designed specifically for ARRMA 3S and 4S 4WD RC vehicles, this heavy-duty steel ring gear and pinion combo is an essential replacement or proactive durability upgrade to keep your RC truck running strong session after session.
Technical SpecificationsDetailed Hardware Dimensions And Part Specs
Compatible Vehicles
ARRMA 1/10 and 1/8 Scale BLX 3S / 4S Series
Part Type
Differential Ring & Pinion Gear
Material
Heavy-Duty Machined Steel
Placement/Position
Front or Rear Gearbox
Gear Cut
Helical Angle Cut
Power System Compatibility
3S to 4S Brushless Systems
Dimensions
Factory Standard Replacement Fit
Weight
Standard Differential Gear Mass
Key Hardware FeaturesHigh Performance Steel Drivetrain Components
MaterialHigh-strength steel construction for maximum durability
DesignHelical cut teeth offer superior mesh and power distribution
PerformanceHandles high-voltage brushless power without gear stripping
CompatibilityFits ARRMA BLX 3S and 4S drivetrain platforms
VersatilitySuitable for front or rear differential assembly
OperationReduces drivetrain friction and noise during operation
Frequently Asked QuestionsEverything you need to know
Is the Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S compatible with both front and rear differentials?
Yes, the Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S is designed to fit either the front or rear differential gearboxes on compatible ARRMA 3S and 4S models.
Why should I upgrade to the Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S over stock straight-cut gears?
Helical gears feature angled teeth that engage more gradually, delivering smoother power transfer, quieter operation, and significantly higher resistance to gear stripping under heavy brushless loads.
What maintenance is recommended when installing the Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S?
When installing your Steel Helical Diff Ring Pinion: ARRMA BLX 3S/4S, always inspect the gearbox bearings, clean out old debris, and apply high-quality black grease or heavy-duty grease to the gear teeth for long-lasting performance.