TriFive

      1955, 1956 and 1957 Chevy Passenger Cars and Wagons. Fits the Sedans, Hardtops, Sport Coupes, Convertibles, Wagons, and Nomads.

      Nerd Rods offers several different frame configurations from "weld it yourself" frames to full turn key chassis with various suspension packages. Corvette Suspensions Independent Rear Suspensions and Live Axles with Corvette Fronts. Please read through our optional frames to find the best version that works for your project be it the “Performance per dollar” C4 Corvette Suspension, The Drag racing inspired ladder bar frame, or even our pro touring monster chassis with C6 front suspension and C4 rear.

Prices Updated 2023.January.17

Part No TFC4
   1984-1996, C4 Corvette Suspension Frame Configurations

      At Nerd Rods we’ve been look at the problems with TriFive suspension and frames for several years. All drum brake, manual steering, bad kingpin / scrub radius relation, not enough caster, flex in the control arms, high center of gravity, and a frame that is designed to flex under moderate load. And after considering all of this we have come to the conclusion that the C4 Corvette Suspension is the BEST, performance per dollar solution, for these older cars. Only a tiny body modification is required to make these suspensions fit under the TriFive floor pan and significantly lower the car at the same time.

      The C5 (1997-2004), C6 (2005-2013), C7 (2014-current as of Feb.2019) Corvette suspensions require considerable modification just to fit under these older, narrower, cars much less function properly. The 1997 and up Corvette suspension requires even more modification to the suspension from there to function properly with narrowed CV shafts and custom rack and pinions. A Ford 9 Inch will cost you over 3k dollars once you have a posi-traction differential and disk brakes. And when you look at the traditional method of disk brake upgrades, dropped spindles, lowering springs, tubular control arms, 4 links, power steering box or rack and pinion installation, what you end up with is a pile of band-aids, not an engineered solution for the whole car.

      In comparison, the C4 suspension only suffer from a few minor problems when compared to other solutions in the same price range, and we have, or are working on, solutions for these problems. The only thing that turns most people away from out frames at this point is wheel and tire choices. With the Corvette suspension being much wider than original and the brakes following suit you are stuck with Pro-Touring style bigger wheels much like the Corvette. So if you have to have 14” chrome smoothies on your car then we can’t help you, otherwise, welcome to your best bang for the buck solution for all the TriFive handling woes.

The C4 Corvette Suspension Features

1984-1987 Corvette Suspension

*We don't recommend the early C4 suspension.

• Independent Front Suspension
• Die Cast Aluminum Components
• 12" Front Brake Rotors
• Single Piston Caliper
• Anti-Dive Geometry for Disk Brakes
• 60.5" Hub to Hub Width
• Power Rack and Pinon
• Front Anti Sway Bar
• 6° of Caster
• Will clear a 16" wheel and some 15" wheels
• Nerd Rods converts to Coil Over Shocks
• Independent Rear Suspension
• Aluminum Suspension componets
• 12" Front Brake Rotors
• Single Piston Caliper
• Limited Slip Differential
• 4.5 Link Independ Suspension
• Rear Anti Sway Bar
• Dana 36 Gear Ratios - 2.73 or 3.08
• Dana 44 Gear Ratio - 3.08
• Nerd Rods converts to Coil Over Shocks
• Notes
• The 84 is a standalone year, avoid it.
• The front control arm will need modification to run a coil over shock.

1988-1996 Corvette Suspension

• Independent Front Suspension
• Die Cast Aluminum Components
• 12 or 13" Front Brake Rotors
• Twin Piston Calipers
• Anti-Dive Geometry for Disk Brakes
• 61.5" Hub to Hub Width
• Power Rack and Pinon
• Front Anti Sway Bar
• 6° of Caster
• Will clear a 16" wheel and some 15" wheels
• Nerd Rods converts to Coil Over Shocks
• Independent Rear Suspension
• Aluminum Suspension componets
• 12" Front Brake Rotors
• Single Piston Caliper
• Limited Slip Differential
• 4.5 Link Independ Suspension
• Rear Anti Sway Bar
• Dana 36 Gear Ratios - 2.73 or 3.08
• Dana 44 Gear Ratio - 3.45
• Nerd Rods converts to Coil Over Shocks

Nerd Rods Frame Specifics

• Corvette Suspensions Bolts right to the frame, 2 minor modifications to the suspension
• Only one modification required to fit the body to the frame.
There is a body lift option as well for people who want NO modifications and a more tradational look.
• Optional Live Axle Rear Suspension configuration, Ladder bars or Build your own.
• QA1 Double Adjustable Coil Over Shocks
Other Options Soon
• Solidworks 3D CAD Designed Frame
• CNC Plasma Cut Tubing and Laser Cut Plates
• Anti Squat streached for the 115" wheelbase
• Cradle angled for better Anti Dive with the higher CG