DSS (The Driveshaft Shop)

8.8" IRS Halfshafts Pair

$1,439.96

SKU: RA8555X4/RA8556X4

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The DSS Halfshafts offer a significant strength upgrade over the stock axle shafts for your Ford S550 Mustang. The Driveshaft Shop has designed these direct replacement axle shafts specifically for 2015-2021 Ford Mustangs equipped with the factory 8.8" Independent Rear Suspension (IRS), ensuring compatibility with V6, EcoBoost, and GT models. These upgraded halfshafts are built to withstand higher power levels, with a stated rating of 800 horsepower. Their robust construction makes them ideal for enthusiasts seeking to enhance the durability and performance of their drivetrain under stress. The set is sold as a complete pair, providing a matched upgrade for both rear axles. This simplifies the upgrade process for owners looking to improve their Mustang's drivetrain integrity without extensive modifications.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandDSS (The Driveshaft Shop)
Part NumberRA8555X4/RA8556X4
CategoryDrivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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