INJORA Steel Heavy-Duty Drive Shaft for 1/10 RC Crawlers (94-119mm) – Fits SCX10, TRX4, Redcat Gen8
INJORA Steel Heavy-Duty Drive Shaft for 1/10 RC Crawlers (94-119mm) – Fits SCX10, TRX4, Redcat Gen8
This INJORA heavy-duty drive shaft is built for 1/10 scale RC crawlers like the Axial SCX10 (90046, AXI03007), TRX4, and Redcat Gen8. It features a universal joint design, hardened steel construction, and a splined engagement that fits a 5mm output shaft. The shaft length adjusts from 94 to 119 mm (3.70–4.69 in), accommodating various wheelbase configurations. Weighing 41 g with an 8.8 mm center shaft diameter, it comes with 4 mm set pins to secure it to the pinion and transmission. Two screws are included for installation.
Why Adjustable Length Matters for Your Crawler
RC crawlers often have suspension flex that changes the distance between the transmission and axle. This drive shaft telescopes from 94 mm to 119 mm, so you can fine-tune the fit without swapping parts. The splined connection allows smooth length changes while maintaining torque transfer. That means less binding and more consistent power delivery on rough terrain.
Key Specifications
| Material | Hardened Steel |
| Inner Diameter (for shaft) | 5 mm |
| Center Shaft Diameter | 8.8 mm |
| Weight | 41 g |
| Length Range | 94 – 119 mm (3.70 – 4.69 in) |
| Set Pin Size | 4 mm |
| Included | 1 drive shaft, 2 screws |
Compatible Vehicles
This shaft is designed for 1/10 RC crawlers with a 5 mm output shaft. Known compatible models include:
- Axial SCX10 (90046, AXI03007)
- Traxxas TRX4
- Redcat Gen8
It may also work on other similar platforms – check your transmission and axle input shaft size (5 mm) and required length range.
What's in the Box?
- 1 × INJORA Steel Drive Shaft (adjustable 94–119 mm)
- 2 × 4 mm Set Pins (pre-installed or included)
- 2 × Mounting Screws
Frequently Asked Questions
Will this fit my Axial SCX10 II?
The listed fit includes SCX10 90046 and AXI03007 (which are SCX10 II and III). The 5 mm shaft diameter and length range cover many SCX10 variants. Verify your model's output shaft size and required length before purchase.
Can I use this on a TRX4 Sport?
Yes, TRX4 and TRX4 Sport use the same 5 mm output shafts. Measure the distance between the transmission and axle to ensure the 94–119 mm adjustment range works for your setup.
Are the set pins strong enough?
The 4 mm set pins are made from hardened steel, matching the shaft material. They provide a secure hold when tightened against a flat spot on the shaft. For best results, apply thread locker.
What's the advantage of the universal joint style?
Universal joints allow the shaft to operate at angles without binding, which is essential for crawling where suspension articulation is high. This reduces stress on the driveline and improves durability.