In Stock
Inspected & Documented
Condition notes recorded before palletizing.
30-Day Startup Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Auto Parts & Accessories
Heidts Pro-G Rear Suspension Packages RM-101-PG
$1,352.66
+ $185.00 flat-rate insured LTL freight
(details)
$1,537.66 delivered to the continental US
- Palletized and heavy shrink-wrapped for freight
- LTL carrier delivery with optional liftgate service
- Ships in 1–2 business days from Los Angeles, CA
- Transit typically 3–7 business days, continental US
Secure checkout by Stripe
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
Heidts Pro-G Rear Suspension Package, Ultimate Bolt-On IRS for Classic Cars!
The Heidts Pro-G Rear Suspension Package (RM-101-PG) delivers modern performance and precision handling for classic cars. This fully independent rear suspension (IRS) system is a direct bolt-on upgrade, requiring no cutting or floor modificationsmaking it one of the easiest ways to achieve race-inspired handling without major fabrication.
Designed to handle high-horsepower applications, this system offers improved traction, ride quality, and cornering stability over traditional solid-axle setups. Whether you’re building a pro-touring machine or a high-performance street car, this kit delivers superior control and comfort.
Perfect for classic car enthusiasts who want modern handling without sacrificing drivability!
What’s Included in the Kit?
Coilover Shock SystemProvides a smooth, controlled ride with high-performance damping
Single-Adjustable Upper Trailing ArmsAllows precise rear suspension tuning
Single-Adjustable Lower Trailing ArmsImproves rear axle control & stability
Trailing Arm Mount Braces & HardwareEnsures secure & reinforced installation
Panhard BarHelps maintain proper rear axle alignment
Spherical Bearing BushingsReduces friction & enhances suspension movement
Achieve pro-touring levels of handling without sacrificing ride quality!
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Heidts |
| Manufacturer Part # | RM-101-PG |
| Product Type | Rear Suspension Package |
| Rear Shock Type | Coilover |
| Coilover Springs Included? | Yes |
| Spring Finish | Gray/Silver |
| Suspension Package Finish | Bare |
| Bushings Included? | Yes |
| Bushing Material | Spherical Bearing |
| Sway Bar Included? | No |
| Watts Link Included? | No |
| Panhard Bar Included? | Yes |
| Adjustable Panhard Bar? | No |
| Upper Trailing Arms Included? | Yes |
| Adjustable Upper Trailing Arms? | Yes (Single Adjustable) |
| Lower Trailing Arms Included? | Yes |
| Adjustable Lower Trailing Arms? | Yes (Single Adjustable) |
| Trailing Arm Mount Braces Included? | Yes |
| Trailing Arm Hardware Included? | Yes |
| Third Member Included? | No |
| Axle Shafts Included? | No |
| Rotors & Calipers Included? | No |
| Quantity | Sold as a kit |
Upgrade your classic car with a state-of-the-art IRS system for race-ready performance!
Fitment & Compatibility
Designed for Classic Car Applications
Ideal for High-Performance Street Cars & Pro-Touring Builds
No Cutting or Floor Modifications Required
Perfect for enthusiasts who want modern performance in a classic car!
Installation Notes & Tips
100% Bolt-On Installation, No Welding or Cutting Required
Ensure Proper Suspension Alignment for Optimal Handling
Professional Installation Recommended for Precision Setup
A proper alignment and ride height adjustment is necessary after installation for best performance!
Frequently Asked Questions (FAQ)
What makes this rear suspension package better than a traditional solid axle?
- The independent rear suspension (IRS) design significantly improves ride comfort, traction, and handling by allowing each rear wheel to move independently over rough surfaces.
Does this kit require any cutting or welding?
- No! The Heidts Pro-G system is a fully bolt-on setup with no need for floor modifications.
Can I adjust the rear suspension for different driving conditions?
- Yes! The kit includes single-adjustable upper and lower trailing arms to fine-tune suspension geometry for your specific build.
Does this kit include rotors, calipers, or axle shafts?
- No. This package includes suspension components onlybrake and drivetrain parts are sold separately.
Is this system suitable for daily driving?
- Absolutely! The Heidts Pro-G system delivers modern ride comfort and handling without sacrificing daily drivability.
Call to Action, Upgrade Your Classic Car’s Suspension Today!
Transform your classic car with the Heidts Pro-G Rear Suspension Package!
Independent Rear Suspension for Modern Handling & Performance
Bolt-On Installation with No Cutting or Welding Required
Coilover Shock System for a Smoother Ride & Better Traction
Adjustable Trailing Arms for Precision Suspension Tuning
Order Now & Experience the Future of Classic Car Suspension!
OverviewBrand:
Heidts
Manufacturer’s Part Number:
RM-101-PG
Part Type:
Rear Suspension Packages
Product Line:
Heidts Pro-G Rear Suspension Packages
Summit Racing Part Number:
HDT-RM-101-PG
UPC:
887753178886
Third Member Included:
No
Axle Shafts Included:
No
Upper Control Arms Included:
No
Lower Control Arms Included:
No
Air Bags Included:
No
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Coilover
Coilover Springs Included:
Yes
Spring Finish:
Gray/Silver
Suspension Package Finish:
Bare
Bushings Included:
Yes
Bushing Material:
Spherical bearing
Bushing Color:
Natural
Sway Bar Included:
No
Watts Link Included:
No
Panhard Bar Included:
Yes
Adjustable Panhard Bar Included:
No
Upper Trailing Arms Included:
Yes
Adjustable Upper Trailing Arms Included:
Yes
Adjustable Upper Trailing Arms Type:
Single adjustable
Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Included:
Yes
Adjustable Lower Trailing Arms Type:
Single adjustable
Trailing Arm Mount Braces Included:
Yes
Trailing Arm Hardware Included:
Yes
Rotors Included:
No
Calipers Included:
No
Quantity:
Sold as a kit.
Startup & Installation Checklist
- Replace timing components, water pump and plugs before initial startup where applicable.
- Refill all fluids with manufacturer-specified oil and coolant.
- Verify sensors, ECU pinouts and grounds against your chassis or hull wiring.
- Startup warranty covers heads, block and internal lubricated components for 30 days from delivery.
Full terms: 30-day startup warranty · returns
