Trail-Gear Rock Assault Bolt-in Rear Axle For 2005-2015 Toyota Tacoma
The Trail-Gear Rock Assault Bolt-In Rear Axle is purpose-built for second-generation Toyota Tacomas, combining the proven strength of our fabricated axle housing with the simplicity of a direct bolt-in installation. Designed to work with both Toyota 8.4" and 8" E-Locker differentials, this axle reuses all factory components—including axle shafts, differential, ABS, brake lines, and parking brake cables—for a seamless upgrade. All factory mounting points and routing paths are retained, ensuring straightforward installation and OEM fitment.
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(805) 783-2060
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The Trail-Gear Rock Assault Bolt-In Rear Axle is purpose-built for second-generation Toyota Tacomas, combining the proven strength of our fabricated axle housing with the simplicity of a direct bolt-in installation. Designed to work with both Toyota 8.4" and 8" E-Locker differentials, this axle reuses all factory components—including axle shafts, differential, ABS, brake lines, and parking brake cables—for a seamless upgrade. All factory mounting points and routing paths are retained, ensuring straightforward installation and OEM fitment.
Features:
- Heavy-Duty Construction - Built from a 1/4” ASTM A36 steel shell with a 1/2” faceplate and 3.5” OD DOM axle tubes for maximum strength.
- 3-Point Engagement System - Industry-first design locks the axle tubes into the center section for unmatched durability and structural integrity.
- Leak-Free Reliability - Precision-machined housing face ensures a flush differential mount, preventing leaks and extending service life.
- Adjustable Setup - 1/4” steel leaf spring perches with 1” of adjustability allow fine-tuning of axle position forward or backward.
- Reinforced Mounts - 3/16” fully welded shock mounts and heavy-duty brake line tabs (11-gauge & 3/16” steel) match factory locations for added strength and easy installation.
Engineered for off-road performance and long-term reliability, the Trail-Gear Rock Assault Bolt-In Rear Axle is the strongest, most dependable Tacoma axle upgrade available.
Specifications:
- Center Section & Leaf Spring Perches - 1/4” CNC-formed ASTM A36 steel
- Faceplate - 1/2” CNC-formed ASTM A36 steel and machined after welding for flush differential fit
- Shock Mounts - 3/16” CNC-formed ASTM A36 steel and fully welded for added strength
- Brake Line Tabs - 3/16” and 11-gauge CNC-formed ASTM A36 steel
- Axle Tubes - 3.5” OD, 1/4” wall SAE 1020 DOM steel
- Attachment System - Industry-first 3-point design for superior tube engagement
- Hardware Included - M8 bolts and lock washers
- Finish - Ships bare
- 65” WMS
| Part # | Differential | Regular/E-Locker | Inspection Hole |
|---|---|---|---|
| TGI-312731 | 8" | E-Locker | No |
| TGI-312732 | 8" | E-Locker | Yes |
| TGI-312729 | 8.4" | Regular | No |
| TGI-312730 | 8.4" | Regular | Yes |
CALIFORNIA RESIDENTS - WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
