The Tri-Five HEIDTS® Pro-G® IRS is a true bolt-in, high horsepower Independent Rear Suspension System for 1955 through 1957 Chevy cars. This industry-leading design is based off the proven and award-winning HEIDTS® Pro-G®
IRS geometry, while the bolt-in design means it can be installed on cars that are already complete or easily added to builds already underway. The Tri-Five 55-57 Chevy BOLT-IN INDEPENDENT REAR SUSPENSION also features several design enhancements to make exhaust routing easier.
- Plain Steel or Polished Package
- Smooth or Drilled and Slotted Rotors
- Standard or High HP CV Shafts
- Rear Positraction Gears
- Billet Adjustable Shocks
- 9" Springs
- Park Brake Caliper (Optional)
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