Rear Axle

1990 Mustang Rear Axle

Rear Axle

CJ Pony Parts is your premier online source for 1990 Mustang rear axle components. If you’re restoring an aging Fox body Mustang, or you need replacement parts for a car that has been damaged in an accident, we have everything you need — from complete axle assemblies to differential covers, gear and pinion sets and other hardware. With parts by B&M, Ford Racing and more, we are proud to offer excellent prices that will help you get the job done without breaking the bank. In our convenient web store, you can purchase online with the click of a button. Each dollar you spend earns you reward points that can lead to great savings down the line.

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1990 Rear Axle

1990 Mustang Rear End Components

A Mustang’s rear axle is made up of several different components. In order to properly diagnose problems and order the right parts for your repair, it’s important to understand how the system as a whole works.

On a rear wheel drive Mustang, the differential is responsible for taking the power the engine produces and distributing it to the rear wheels. The differential is a system of gears and teeth that requires lubrication and calibration to function properly. As such, several things can go wrong with a Mustang differential. Bearings can wear out, gears can break and pinions can come loose. Listen for howling noises during acceleration or deceleration to begin diagnosing the problem.

The second major component of a 1990 Mustang’s rear end is the axle. The axle connects the differential to the rear wheels. Signs of damage can include strong vibrations, humming noises, and grinding during idling and acceleration.

Rear Axle Repairs

Having the right parts on hand is only one component of any rear axle repair. With help from CJ Pony Parts, even an amateur mechanic can complete major repairs in their home garage. Our tech library contains useful information about your Mustang that can simplify an axle replacement or other drivetrain work. You’ll also find a great selection of installation guides for some of the most commonly replaced 1990 Mustang rear end parts — submit your own for a chance to receive up to $100 off your next order.

With affordable parts and expert support, CJ Pony Parts is a true partner to Mustang owners throughout the world. From our warehouse to your home garage, you can count on us for exceptional customer service every step of the way. Browse our current inventory of 1990 Mustang rear axle parts by following the links on this page.