Overview
Lower your Traxxas TRX-4's center of gravity dramatically with the Hot Racing CNC Solid Brass 70g Heavy Differential Cover. CNC-machined from solid brass billet with 1mm increased thickness over stock, this heavy diff cover adds 70g (2.5 oz) of mass directly to the axle in a low and centralized location — right where it does the most good for crawling stability.
Beyond the impressive weight gain, the increased material thickness also dramatically improves impact resistance against rocks and ledges. A scale-realistic functional drain plug screw adds visual interest and lets you actually drain diff fluid for service. Compatible with both the front and rear differential — install one or both depending on your weight-bias preference.
Key Features
- CNC-machined solid brass billet construction
- Adds 70g to the axle in a low, centralized location
- 1mm increased thickness for additional toughness
- Scale-realistic functional drain plug screw
- Compatible with TRX-4 front or rear differentials
Performance Benefits
- Significantly lower center of gravity
- Improved climbing and side-hill stability
- Stronger impact resistance vs. stock plastic cover
- Functional drain plug for easy diff service
- Long-lasting brass durability
Usage Notes
Use on the front differential requires slight modification of the stock steering rod for clearance, OR use of the Hot Racing stainless steel tie rod (part STRXF49M08). Apply removable thread-locker on cover screws during installation. Inspect diff seal and replace if worn during installation. Re-torque cover screws after the first run.
Technical Specs
- Material: CNC-machined solid brass billet
- Weight: 70g (2.5 oz)
- Thickness: 1mm increased over stock
- Function: Differential cover (front or rear)
- Drain Plug: Scale-realistic functional screw
What's Included
- One (1) solid brass differential cover
- Mounting hardware
Fitment
- Traxxas TRX-4 (1/10 scale)
- Compatible with TRX-4 front or rear differentials
- Front installation requires steering rod modification or Hot Racing STRXF49M08 tie rod
Summary
The Hot Racing CNC Solid Brass 70g Heavy Differential Cover delivers serious low-CG benefits, real impact protection, and scale-realistic looks in one bolt-on upgrade. A foundational piece of any low-CG TRX-4 build.
