Steeda HARDCORE Billet Rear Shock Mount - 10mm | Mustang
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FFP · AUTHORIZED DEALER The leader in Ford performance · Over 35 years · MAP pricing SHOP ALL STEEDA →
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Part #555-8151

2015-2026 Ford Mustang – Steeda HARDCORE Billet Rear Shock Mount - 10mm

Fits These Vehicles 2015-2026 Ford Mustang GT350/Mach 1/Bullitt/GT/EcoBoost
Price Original price was: $299.95.Current price is: $269.96.
  • Engineered and manufactured in Valdosta, Georgia
  • CNC-machined billet construction where applicable
  • Tested on Steeda's SCCA Majors race program
  • Steeda authorized dealer — exact MAP pricing

Limited Lifetime Warranty

Backed by Steeda — FFP is an authorized Steeda dealer and warranty claims are honored direct.

— Function Factory Performance

Authorized Steeda Autosports dealer. MAP pricing — the same price as steeda.com. Expert install available at our Thousand Oaks, CA shop. Questions on fitment or setup? Chat with Senna or call our specialists.

Overview

The full breakdown.

Origin
Made in USA
Warranty
Limited Lifetime

Overview

Check out Mustang 360’s review and install our billet aluminum rear shock mounts for the S550.

Once the aftermarket shocks started coming out for the S550 (2015+) Mustang people all across the country ran into issues breaking the factory rear shock mount. Whether it was drag racing or road racing with very stiff shocks, customers were having all sorts of issues. That’s when the team at Steeda got together to come up with a solution.

Made from billet 6061 aluminum, these mounts are designed to replace the weak cast factory units. Unlike the factory mounts that have a rubber bushing that binds and will deteriorate over time on lowered cars or cars with aggressive shock settings, these units feature a Steeda spec stainless steel spherical Teflon lined bearing for optimum performance and control. Unlike other aftermarket mounts, these mounts are compatible with adjustable shocks that utilize a top-mounted adjuster. Steeda also designed this kit to provide 1/4″ more clearance for wide rear tires on S550/S650 Mustangs. A great way to keep the bearings protected from the elements is to add on the Steeda Rear Shock Mount Covers .

Product Gallery

Key Benefits

10mm x 1.0 – Steeda Non-Adjustable Pro-Action Shocks, Koni Non-Adjustable Shocks, KW V3 Adjustable Shocks
10mm x 1.25 – Aftermarket shocks
10mm x 1.5 – OE Ford Shocks, Viking Shocks, Ford Racing Shocks
Better rear shock control
Compatible with adjustable shocks
Bolt-in installation
Made in the USA
Steeda also designed this kit to provide 1/4″ more clearance for wide rear tires!
Stock Shocks
Viking Shocks
Ford Racing Shocks
Steeda Non-Adjustable Pro-Action Shocks

Specifications

Origin
Made in the USA

Video

Fitment

2015-2026 Ford Mustang GT350/Mach 1/Bullitt/GT/EcoBoost.

Note: This is a HARDCORE part intended for high performance applications, and may introduce NVH.

Why Steeda
The leader in Ford performance.

Steeda has been engineering and manufacturing Ford performance parts in-house in Valdosta, Georgia for over 35 years — proven on their own SCCA Majors race team and trusted by enthusiasts who live and breathe Ford. CNC-machined billet construction, proprietary CAD-driven suspension geometry, and a relentless focus on the platforms they specialize in.

QS-9000 & ISO 9001 manufacturing · Limited lifetime warranty on Steeda-manufactured parts · Made in the USA

First-hand note

FFP fits Steeda parts every week in Thousand Oaks.

— Why we stock Steeda

OE-style engineering, in-house manufacturing, race-proven on Steeda's own SCCA program.

Steeda has been engineering Mustang — and now Explorer, Focus, F-150, and Maverick — parts in Valdosta, Georgia since 1988. CNC-machined billet, proprietary CAD-driven suspension geometry, and a factory SCCA Majors road-racing team that runs their own parts on the track every weekend. When you bolt a Steeda part onto your car, it's the same part Steeda's own race cars run.

We carry Steeda because the fitment is right the first time, the warranty is real (lifetime on Steeda-manufactured parts), and the install instructions don't leave you guessing. Drop the car at our Thousand Oaks shop and our techs handle the fit-up — or order with confidence and run it yourself.

Authority: Charles Siritho · McLaren Artura Trophy owner · Spotter for Branden Sorensen FD Pro (E46 LS+Whipple, 6th at Long Beach R1 2026) · 10+ yrs Mustang & Corvette specialist

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— FFP is an Authorized Steeda Dealer

Shop the full Steeda catalog at FFP.

The leader in Ford performance — suspension, intakes, exhaust, brakes, wheels, and more — for Mustang, Bronco, Bronco Sport, Explorer, F-150, and Maverick. Enthusiast-driven, race-tested. MAP pricing always. Expert installation in Thousand Oaks, CA.

BROWSE ALL STEEDA →
Price Original price was: $299.95.Current price is: $269.96.
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OVER 35 YEARS IN FORD PERFORMANCE. RACING EVEN LONGER.
— Steeda Autosports · sold & installed by FFP
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