Heidts New Universal High Horsepower Pro G IRS

When it comes to building that next project, chances are there isn’t always going to be something you can grab off the shelf and bolt right in. Heidts understands this is especially true when it comes to suspension. That’s why they’ve developed their Universal High Horsepower Pro G IRS.

Official Release:

The Heidts Automotive Group announces the availability of a new Independent Rear Suspension (IRS) system designed for high-horsepower, “universal” applications that may not be covered by the existing Pro-G products. This new product is based off the proven and award-winning Pro-G IRS design and extends Heidts’ leadership with regards to their existing range of fully-engineered front and rear suspension systems and components.

“We’re really excited about the Universal High Horsepower IRS,” says Mike Hawley, Heidts Sales Manager. “We are constantly amazed by the mechanical creativity of our dealers and their customers and we can’t wait to see all the types of vehicles that will be built around this new Universal IRS system.”

NEW: Universal, High Horsepower IRS (Independent Rear Suspension)

Responding to the requests of our dealers and customers, the Heidts Engineering Team developed a high horsepower, universal application of the award-winning Pro-G IRS design and geometry.

The new Universal HHP IRS features a fully-welded and boxed, cut-to-fit upper cross member, heavy-duty upper and lower control arms, fully welded uprights, heavy duty constant velocity joints and axle shafts as well as Heidts’ own cast center section that can be loaded with a wide range of gear ratios and posi-traction differentials. The HHP IRS also makes use of standard 10.5-inch inboard mounted disc brakes with four-piston Wilwood calipers. Based upon the intended vehicle application, the Heidts Sales Team will help the dealer or customer select the proper spring rates for the coil-over shock assemblies. To aid in custom installations, the HHP IRS is available in both 56- and 58-inch wheel track versions.

Hawley notes that the new Universal High Horsepower IRS is available for order now and typically ships within 48 hours. “Here’s your chance to be one of the first to install and build a cool hot rod truck or high horsepower muscle rod around our award-winning Pro-G style IRS,” says Hawley.


  • 9-inch aluminum rear gear/differential housing
  • 3rd member, iron, posi-traction
  • Heavy Duty CV Joint & Half Shafts
  • Tubular Upper & Lower Control Arms
  • Steel Outer Uprights
  • Fully welded and boxed Top Cross member
  • Frame Mounting Brackets
  • Front Pinion Support
  • Forward Struts (requires sub-frame connectors)
  • 10.5-inch Wilwood Rotors
  • Black, four-piston Wilwood brake calipers
  • Billet single adjustable coil-overs with chrome plated springs



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