QA1 Level 2 Handling Suspension Kits HK32-CRB4
Part number 42705f7604da
$5,797.84
In stock ready to ship
Parts & Accessories
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Parts & Accessories
SKU 2e50bf167817
Car Chassis & Suspension Kits$2,119.39
Freight and taxes calculated at checkout
In stock · ready to ship
No warranty
Commercial use may carry a shorter period than pleasure use.
Warranty termsFreight — oversize — from $349. Ships in 1–3 business days, 3–10 business days in transit.
Freight damage must be noted on the delivery receipt and reported within 48 hours of delivery.
Shipping rates30-day return window · 25% restocking fee plus freight both ways.
Engines or transmissions that have been disassembled or parted out cannot be returned.
Full policySecure card payment via Stripe. A deposit holds an item for 15 days.
Some engines and transmissions carry a refundable core charge, shown on the product page where it applies.
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In the seller's words
Scott’s Hot Rods 4-Bar Rear Suspension Kits (M-42-14-PT) are engineered to deliver superior ride quality, handling, and adjustability for hot rods and custom builds. The equal-length parallel 4-bar setup ensures consistent suspension geometry, while the perpendicular double-adjustable panhard bar reduces lateral movement for a smooth and stable ride.
Fully adjustable without unbolting the link bars, this kit uses CNC-machined stainless steel rod ends with RH- and LH-threaded joints, allowing you to fine-tune pinion angle and setup with ease. Unlike triangulated 4-link systems, the pinion angle remains constant throughout suspension travel, ensuring predictable handling.
Includes Firestone 9000 air springs, allowing you to customize your ride height at the push of a button – perfect for show cars, performance builds, or everyday cruisers looking for maximum adjustability.
Designed for hot rods, street machines, and custom projects that demand both comfort and control!
✅ CNC-Machined 1 1/8″ x 1/4″ DOM Tubing Link & Panhard Bars – Adjustable for precise suspension tuning
✅ Perpendicular Double-Adjustable Panhard Bar – Minimizes lateral movement for increased stability
✅ CNC-Machined Stainless Steel Rod Ends – RH- & LH-threaded for easy adjustments
✅ FK Bearing Heim Joints – High-strength joints for durability & smooth articulation
✅ Firestone 9000 Airbags – Tapered air springs for fully adjustable ride height
✅ Upper Shock Crossmember – Allows you to fine-tune ride height during installation
✅ Rear-End Housing Brackets & Front Frame Brackets – Ensures secure mounting & alignment
✅ Sway Bar Included – Enhances stability & reduces body roll
✅ 5/8″ Grade 8 Hardware – Heavy-duty fasteners for maximum reliability
⚙️ Optimized for performance, adjustability, and long-term durability!
| Feature | Details |
|---|---|
| Brand | Scott’s Hotrods |
| Manufacturer Part # | M-42-14-PT |
| Product Type | Rear Suspension Package |
| Suspension Type | 4-Bar Parallel System |
| Air Bags Included? | ✅ Yes (Firestone 9000) |
| Coilovers Included? | ❌ No (Available Separately) |
| Rear Shock Type | Single Adjustable |
| Sway Bar Included? | ✅ Yes |
| Panhard Bar Included? | ✅ Yes (Double Adjustable) |
| Upper Trailing Arms Included? | ✅ Yes (Double Adjustable) |
| Lower Trailing Arms Included? | ✅ Yes (Double Adjustable) |
| Trailing Arm Mount Braces Included? | ✅ Yes |
| Bushing Material | Spherical Bearing |
| Bushing Color | Natural |
| Rotors & Calipers Included? | ❌ No |
| Mounting Brackets Included? | ✅ Yes |
| Installation Type | Direct Bolt-On – No Welding Required |
| Special Notes | Axle bracket has a 4″ lower bar offset for a higher ride height |
⚡ Delivers improved handling, a smoother ride, and precise suspension control!
✔ Designed for Hot Rods, Custom Builds & Street Machines
✔ Compatible with Various Rear-End Housing Setups
✔ Perfect for Coilover & Airbag Suspension Systems
Great for both performance applications and custom adjustable setups!
Fully Bolt-On Installation – No Custom Fabrication Required
⚙️ Uses Existing Mounting Points for a Seamless Fit
Pinion Angle is Adjustable Without Unbolting Link Bars
Ensure Proper Alignment for Optimal Ride Quality & Suspension Geometry
⚠️ Professional installation is recommended for best results and long-term durability!
How does this suspension kit improve my ride quality?
How do the Firestone 9000 airbags work?
Is this a direct bolt-in kit?
Does this kit include coilovers?
What makes this kit different from a triangulated 4-link system?
Transform your hot rod’s ride quality and handling with Scott’s Hot Rods 4-Bar Rear Suspension Kit!
✔ Adjustable 4-Bar Design for Maximum Stability & Performance
✔ Firestone 9000 Airbags for Fully Adjustable Ride Height
✔ Double-Adjustable Panhard Bar to Minimize Axle Shift
✔ Direct Bolt-On Installation – No Welding Required
Order Now & Experience the Ultimate in Suspension Control & Comfort!
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