RCV 30-Spline 300M CV Axle Set w/ for Toyota Pickup ('79-85) & 4Runner ('84-'85)
SKU: CVJ2851-PUM
The RCV Ultimate 30 Spline CV Axle Set with 300M Shafts is the strongest direct replacement CV axle solution available for solid axle Toyota Pickup and 4Runner models. OEM Toyota axles neck down from 30 splines at the differential to a weak 27-spline CV, creating a known failure point for anyone running bigger tires, lockers, or aggressive off-road terrain.
RCV eliminates this weakness by upgrading the CV joint to a full 30-spline 300M race, removing the neck down entirely. This kit also includes 300M inner axle shafts, providing the highest possible torsional strength and fatigue resistance in the Toyota solid axle platform. The result: 2× stronger than OEM, full strength at straight and extreme steering angles, and smooth, vibration free power delivery
Includes:
- Left & right 300M inner axle shafts
- (2) pre-greased 30 spline CV joints
- Black oxide coating (standard)
- Installation hardware (where applicable)
- RCV moly-based high temp CV grease
- Optional: Nickel plating for enhanced corrosion resistance
- Custom inner shaft lengths (contact us for pricing)
Specifications
- Axle Material: 300M inner shafts & 300M/4340 CV components
- Spline Count (Inner): 30
- Spline Count (Outer/CV): 30 (Upgraded from OEM 27)
- Coating: Black oxide (nickel available)
- Performance: Rated at 2× OEM strength
- Maintenance: Low-maintenance CV design
Fitment
Direct Fit Applications
- 1979–1985 Toyota Pickup / Hilux (US Spec, Solid Front Axle)
- 1984–1985 Toyota 4Runner (Solid Front Axle)
- 1979–1997 Toyota Hilux & Surf (International Spec, Solid Axle)
Notes
- Ideal for trucks running larger tires, lockers, or high-power builds.
- For vehicles upgrading to drive flanges, RCV recommends the 4340 Drive Flange Kit due to inconsistent OEM flange fitment.
Tech Insight
Toyota solid axle models are famously strong, except for the neck down at the CV joint. RCV’s Ultimate kit removes this weakest link entirely:
Why It’s Stronger
- 30-Spline CV Race: Eliminates OEM 27-spline bottleneck
- 300M Inner Shafts: Industry leading strength and torsional fatigue resistance
- Full Strength at Angle: CV joints remain equally strong at full lock
- Smooth Power Delivery: No binding, no chatter, no sudden load spikes
Lifetime Warranty Confidence: Designed for big tires, big power, and hard wheeling
Whether you’re rock crawling, overlanding, or racing, this kit delivers unmatched durability and smoothness for Toyota SFA platforms.