What is 4340 chromoly steel?

4340 chromoly is a type of alloy steel that contains chromium and molybdenum. It's known for its high tensile strength and toughness, making it a popular choice for heavy-duty components like axles that need to withstand significant stress.

Is this axle shaft a direct replacement for the original?

Yes, this USA Standard Gear axle shaft is designed as a direct replacement for the original inner right-hand axle shaft in your specified Ford vehicle and Dana 44 differential. It features the correct spline count and length for a proper fit.

What does 'inner' axle shaft mean?

The inner axle shaft connects the differential to the outer axle assembly (which includes the CV joint or U-joint). This specific part is for the right-hand side of your vehicle.

1976-1979 Ford F-150 Front Axle | USA Standard Gear

Name: USA Standard 4340CM Rplcmnt Axle For Dana 44 / Bronco & F150 RH Inner / 30 Spline
Brand: Yukon Gear & Axle
SKU: yukon-gear-axle-usa-standard-4340cm-rplcmnt-axle-for-dana-44-bronco-f150-rh-inne-t14-4374259
Price: 254.89 USD
Availability: BackOrder

USA Standard 4340CM Rplcmnt Axle For Dana 44 / Bronco & F150 RH Inner / 30 Spline

$254.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1976-1979 Ford F-150. USA Standard 4340CM Rplcmnt Axle - RH Inner. Heavy duty 4340 chromoly construction.

Key Features

Fits 1976-1979 Ford F-150 and 1978-1979 Ford Bronco.
Heavy duty 4340 chromoly construction for increased strength and durability.
Designed for Dana 44 differentials.
Right-hand inner axle shaft.
30 spline count.
33.91 inches long.

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Will it fit your car?

Fits these vehicles

Ford Bronco 1978-1979
Ford F-150 1976-1979

Product Details

If you're working on the front drivetrain of your 1976-1979 Ford F-150 or 1978-1979 Bronco, this USA Standard Gear inner axle shaft is what you need for the right-hand side. It's designed to replace the original axle, ensuring your 4x4 system can send power to the wheel when you need it most. This axle is built to handle the demands of off-road driving and regular use.

This axle is made from heavy-duty 4340 chromoly steel, which is known for its strength and durability. The material, combined with advanced heat-treating processes, creates a robust axle that can withstand significant stress. It's a solid option for rebuilding or upgrading your front axle assembly, especially if you're looking for something stronger than stock for your Dana 44 differential.

This is the inner axle shaft, meaning it connects from the differential to the outer CV joint or U-joint assembly. Make sure you have the correct side and spline count for your specific application. This particular shaft is 33.91 inches long with 30 splines on each end and is for the right-hand side.