Ford Ranger Mk4 2.2 TDCI Rear Axle Differential Diff 3.73 AB39-4001-AZF WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

The Ford Ranger Mk4 2.2 TDCI Rear Axle Differential Rear 3.73 AB39-4001-AZF is an original drivetrain component from the Differentials - Diffs category, designed for installation on the rear axle of the Ford Ranger Mk4 with a 2.2 TDCI engine. This solution is for users who expect stable power transfer, predictable vehicle behavior, and the preservation of factory gear ratio characteristics.

Specifications and technical data

• SKU: 2362770
• Mark: Ford
• Condition: Used
• OEM Part Number: 2362770
• Substitutable numbers: 2362770, AB39-4200-CK, AB394200CK, AB39-4001-AZF, AB394001AZF
• Location on the vehicle: Rear
• Part type: Differential & Housing Assembly
• Category: Differentials

Purpose and Function of the Rear Axle Differential

The presented differential is designed for operation on the Ford Ranger Mk4 2.2 TDCI rear axle, where it is responsible for distributing torque between the wheels and maintaining the correct drive axle ratio. The applied 3.73 gear ratio ensures balanced acceleration, flexibility, and engine speed parameters for on-road driving and light off-road use.

By maintaining the factory drivetrain configuration, the differential helps ensure proper cooperation with the stock gearbox, vehicle electronics, and assistance systems, which is particularly important in commercial vehicles operating under load.

Construction and Fitment for Ford Ranger Mk4 2.2 TDCI

The differential belongs to the Differentials - Diffs category, meaning it is a complete drive axle assembly designed for installation at the rear of the vehicle. The construction complies with Ford's factory standards, facilitating installation in place of the original component without the need for modifications to mounts or housing.

The placement specified as "rear" guarantees that the component is designed specifically for the rear axle, and its geometry, mounting points, and interaction with the drive shafts are adapted to the Ford Ranger Mk4 chassis architecture. Such precise fitment minimizes the risk of alignment issues, noise, or excessive tire wear.

Benefits of Using an Original Ford Differential

Choosing an original Ford differential for the rear axle offers a range of practical benefits for daily vehicle operation:

• preservation of the factory axle ratio, which facilitates maintaining stock driving parameters and fuel consumption,
• compatibility with factory controller settings and assistance systems,
• secure fitment with existing drivetrain and suspension components,
• reduced risk of improper drivetrain operation when driving with a load or towing a trailer.

A used product allows for economical repair of the drive axle while maintaining original specifications, which is particularly important for fleet and commercial vehicles where both cost and vehicle downtime are critical factors.

Practical Application and Selection of the 3.73 Gear Ratio

The 3.73 gear ratio in the Ford Ranger Mk4 2.2 TDCI offers a compromise between starting acceleration and driving comfort at higher speeds. It is suitable for typical commercial applications, such as:

• mixed city-highway driving with moderate loads,
• light off-road work, access to construction sites, agricultural or forest terrain,
• towing trailers within the vehicle manufacturer's specified limits.

If you want to better understand how the axle ratio affects a vehicle's characteristics and choose a configuration that suits your driving style, it's worth reading the article Used Drive Axles and Differentials – How to Choose Gear Ratios for Your Driving Style, which discusses practical examples and common configurations.

Used Condition and Service Aspects

The differential is a used part obtained from disassembly and offered as a used component, significantly reducing repair costs compared to a new OEM part. This type of solution is often chosen by workshops and individual users who seek a reasonable balance between price and maintaining original technical specifications.

If you prioritize a quick restoration of drivetrain functionality, it's worth familiarizing yourself with the material How the Availability of Used OEM Parts Off-the-Shelf Reduces Repair Time and Vehicle Downtime, which describes the practical benefits of using proven disassembled components.

Other Ford Differentials – Fleet Expansion and Service

If you are also looking for other differentials for vehicles of this brand, check out the Ford Differentials - Diffs available in our store, which will facilitate the selection of a suitable drive axle for other vehicles in your fleet or for other Ford Ranger versions.