QJZ Master Overhaul Kit for Toyota Trucks Steel

Description

Product Overview

The QJZ Master Overhaul Kit is engineered for Toyota Tacoma, 4Runner and Tundra differentials, offering a complete solution for rebuilding worn components. Crafted from high‑grade steel, the kit includes premium bearings, an electronic locker (E‑Locker), a solid spacer and machined exterior parts that provide precise fit and long‑term durability. Each component meets or exceeds OEM specifications, ensuring seamless integration with factory assemblies.

Usage

Ideal for off‑road enthusiasts, fleet maintenance and everyday drivers, this kit restores differential performance after heavy use or wear. Install the kit when rebuilding a differential to improve torque distribution, reduce noise and enhance reliability on rugged terrain or city streets.

Why Choose Us

QJZ is a U.S.-based manufacturer committed to quality and precision engineering. Our kits undergo rigorous testing to guarantee bearing longevity, smooth locker engagement and resistance to corrosion. Backed by a solid warranty and positive customer reviews, the kit offers confidence for both professional shops and DIY mechanics.

Key Features

• Premium steel bearings for high load capacity and reduced friction
• Electronic locker (E‑Locker) provides selectable torque distribution
• Solid spacer ensures proper gear alignment and eliminates play
• Machined exterior components deliver a precise, factory‑fit finish
• Comes with all necessary hardware for a complete differential rebuild

FAQ

Is this kit compatible with all model years of Toyota Tacoma?

Yes, the kit is designed to fit Toyota Tacoma, 4Runner and Tundra models that use OEM part numbers 90366‑30067, 90366‑35087, 90366‑75001 and related variants.

Do I need additional tools to install the E‑Locker?

The kit includes all required hardware, but a standard set of hand tools and a torque wrench are recommended for proper installation.

Can this kit be used for performance upgrades?

Absolutely. The high‑strength bearings and solid spacer improve durability and allow for more aggressive off‑road use while maintaining smooth operation.

What warranty does QJZ provide?

QJZ offers a one‑year limited warranty covering manufacturing defects on all kit components.

How does the E‑Locker differ from a traditional locker?

The electronic locker allows the driver to engage or disengage locking mode on demand, providing flexibility between open‑differential handling and full torque transfer when needed.