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Description
For the first-generation Mustang owner looking to dominate the autocross or road race course, the Heidts High Horsepower Independent Rear Suspension (IRS) is the ultimate performance upgrade. This bolt-in package replaces the traditional solid axle with a sophisticated independent setup, providing unparalleled handling, superior traction, and a refined ride that no solid axle can match.
Performance and Advanced Geometry
True Independent Movement: Each rear wheel reacts independently to road imperfections and cornering loads. This keeps the tire contact patch flat on the pavement for maximum grip during aggressive maneuvers.
Optimized Camber Curve: The system is engineered with an upper link that produces -0.5 degrees of camber curve at 3/4 of total travel. This ensures optimal tire geometry during extreme cornering loads when grip is most critical.
Engineered Stability: The kit features forward struts that attach directly to the subframe connectors. This design ensures the wheels stay perfectly in place, preventing axle wrap and deflection during hard acceleration.
High Horsepower Durability: This is a heavy-duty package featuring reinforced upper links and high-capacity CV joints designed to handle the high torque of modern performance engines.
Structural Integration
Bolt-In Design: This complex system is engineered as a bolt-in package, allowing you to transform your Mustang’s rear architecture without the need for permanent floor modifications.
Chassis Rigidity: The system includes subframe connectors as standard equipment. These are essential for tying the front and rear subframes together, providing the rigid platform necessary for an independent suspension to function at its peak.
Billet Coil-Overs: Features billet adjustable shocks and 9-inch performance springs, allowing for precise tuning of ride height and dampening characteristics.
Kit Includes:
Brakes: High-performance rear brakes, available with smooth or drilled and slotted rotors.
CV Shafts: Heavy-duty shafts available in Standard or High HP ratings.
Differential: Includes 9" Positraction gears for maximum power delivery to both wheels.
Suspension: Billet adjustable coil-over shocks and 9" springs.
Chassis: Full subframe connectors and forward stabilizing struts.
Parking Brake: Optional dedicated park brake calipers for street-driven applications.
Finishes: Custom finishes for various components are often available to match show-quality build standards.
Technical Notes
Unsprung Weight: By utilizing a sophisticated independent design, this kit significantly reduces unsprung weight compared to a heavy solid axle, allowing the suspension to react much faster to changes in the road surface.
Track Width: This system is designed to fit within factory Mustang wheel wells while providing the stable footprint required for competitive driving and track days.
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund
