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TrakMotive TO-8391 CV Axle Shaft - Front Left
| Brand | TrakMotive TO-8391 |
|---|---|
| Position | Front Left |
| Abs Tone Ring Included | No |
| Axle Nut Head Type | Hex |
| Axle Nut Height (in) | 6/7 |
| Axle Nut Height (mm) | 21.5 |
| Axle Nut Hex Size (in) | 1 1/6 |
| Axle Nut Hex Size (mm) | 30 |
| Axle Nut Included | Yes |
| Axle Nut Length (in) | 1 1/3 |
| Axle Nut Length (mm) | 34.6 |
| Axle Nut Locking Type | Stake |
| Axle Nut Thread Size | M22*1.5 |
| Boot Material | Neoprene |
| Inboard Joint Type | Male |
| Inboard Shaft Connection Style | Male |
| New Or Remanufactured | New |
| Number Of Inboard Splines | 20 |
| Number Of Outboard Splines | 26 |
| Outboard Joint Type | Conventional |
| Outboard Shaft Connection Style | Spline |
| Overall Compressed Length (in) | 25.94 |
| Overall Compressed Length (mm) | 659 |
| Product line | AAR CV Axle Shaft |
| Fits | Toyota and Scion · 3 vehicles |
OE direct replacement. New CV axle shaft with included axle nut for straightforward service.
Neoprene boot material. Helps resist wear while keeping the joint protected.
ABS-ready design. Fits non-ABS applications unless otherwise noted.
Cross-references TrakMotive TO-8391 for the same application. See all 1.
TrakMotive TO-8391 AAR CV Axle Shaft
The TrakMotive TO-8391 is a new AAR CV axle shaft for front left applications on select Toyota and Scion models. It is built for direct replacement service with the correct spline counts, included axle nut, and OE-style dimensions for the listed vehicles.
Key Features
- Brand: TrakMotive AAR CV Axle Shaft
- Part number: TO-8391
- Front left CV axle shaft for select 2016-2018 applications
- New construction with neoprene boot material
- Inboard joint type: male
- Outboard joint type: conventional
- 20 inboard splines and 26 outboard splines
- Overall compressed length: 25.94 in. (659 mm)
- Axle nut included with M22 x 1.5 thread, 30 mm hex size, stake locking type
- No ABS tone ring included
Product Details
The TrakMotive AAR CV Axle Shaft line is built for OE-style driveline service where accurate fit and consistent joint geometry matter. This TO-8391 axle matches the listed front left applications for 2016 Scion iM, 2017 Toyota Corolla iM, and 2018 Toyota Corolla iM, making it a direct replacement choice for vehicles needing a front left CV axle shaft with the specified AAR design. The axle uses a male inboard connection, a spline-style outboard shaft connection, and a conventional outboard joint configuration to align with the original driveline layout.
This part cross-references TrakMotive TO-8391 for the same application.
Vehicle Fitment
- Fits 2018 Toyota Corolla iM, front left; OE AAR design.
- Fits 2017 Toyota Corolla iM, front left; updated design.
- Fits 2016 Scion iM, front left; updated design.
Common Replacement Reasons
- Clicking or popping during turns from worn CV joints
- Vibration during acceleration caused by a worn axle shaft
- Torn or deteriorated CV boot material
- Excessive driveline play or noise from a damaged axle assembly
- Front left axle failure on AAR-design applications
Installation Notes
Verify spline count, axle nut thread size, and overall compressed length before installation. The included axle nut uses an M22 x 1.5 thread with a 30 mm hex size and stake-style locking design. Because this axle does not include an ABS tone ring, confirm the vehicle’s original configuration against the listed fitment before service. Follow factory torque specifications and inspect related seals, hubs, and suspension components during replacement.
Quality Assurance
TrakMotive backs this axle shaft with a limited lifetime warranty. The company states that it is ISO 9001:1007 and TS 16949:2009 certified, supporting controlled manufacturing and product consistency for driveline replacement parts.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Toyota | Corolla iM | Front Left | OE AAR design; AAR CV Axle Shaft |
| 2017 | Toyota | Corolla iM | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | Scion | iM | Front Left | Updated Design; AAR CV Axle Shaft |
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