21 October 2016

Corvette suspension upgrades for those who don’t like it rough

Burton Hall would not deny that his 1961 Corvette, a dual-quad, four-speed model with a 4.11 axle ratio, can be a rough-riding machine. Its steering, handling, braking and ride comfort fall far short of modern cars.

That’s just how he likes it.

“An old car is a document, a history book,” says Hall, an editorial and digital designer. “When I drive the Corvette, I know what it’s like to drive in 1961.”

After buying his Honduras Maroon ’Vette in the summer of 1967, Hall used it as everyday transportation for 13 years, around the New York metro area as well as for long drives up and down the East Coast. His records document nearly 260,000 miles accrued, and he still clocks about 2,000 a year, including a 200-mile round-trip in 98-degree New Jersey’s summer weather.

So Hall is well aware that a first-generation Corvette’s primitive suspension does little to cushion passengers from the abuse of poorly maintained roads. Still, aside from a set of Keystone wheels installed in 1968, Hall’s ’61 remains in factory-stock condition, with its original powertrain, paint and interior. He resists installing even radial tires or replace the tube-type AM radio.

Other owners of C1 Corvettes are less willing to put up with the jolts. Motivated by the availability of bolt-in suspension and steering parts, they are upgrading their cars to improve road manners says Jerry Kohn, founder and owner of Corvette Central in Sawyer, Mich. The parts, which amount to a total rework of the front-end design, can be removed if the owner decides to return the car to its original chassis layout.

Chevrolet based the 1953-62 Corvette’s chassis on components from its 1949-1954 passenger cars, including the kingpin steering links. Kohn says that the easiest upgrade to ride and handling is to replace worn springs and to install radial tires and modern shock absorbers. Steel wheels that fit reproduction wheel covers are available in the original 15 x 5-inch size, and Coker Tire offers a radial tire that resembles a bias-ply to maintain a stock look. Going wider than six inches can cause clearance problems, Kohn explains.

The next level of upgrade is to replace the original recirculating-ball steering with a modern rack-and-pinion system, which improves steering noticeably, Kohn says. Steeroids conversion kits, available through a number of suppliers, enable owners to bolt in a system that offers the option of adding power assist, something that GM didn’t offer for the earliest ’Vettes.

To completely overhaul the handling, ride and steering of a C1 Corvette, Kohn recommends installing a full bolt-in front suspension system made by Jim Meyer Racing Products in Lincoln City, Ore. Although based on the compact A-arm Mustang II suspension layout that hot rod builders favor, Meyer’s design uses many GM parts, including 1967-72 Chevelle spindles, ball joints, brake calipers and 11-inch ventilated rotors.

The kit’s crossmember bolts to the original frame in the stock location. Meyer says that the installation requires a two-inch weld on each side of the frame to secure small support brackets. Even so, the new suspension remains removable, and the welded brackets could be ground off if re-installing the original suspension.

In the version of the kit that Meyer sells, the steering rack is a remanufactured unit from a 1979-93 Ford Mustang or similar vintage Thunderbird, and it offers the option of power assist, also a reversible bolt-in. Meyer recommends using a new steering column from suppliers like Ididt or Flaming River (though Meyer does sell a kit to modify the original column).

“Just doing the bolt-in front end, these cars steer, ride and handle superbly,” says Meyer. He estimated that someone with moderate mechanical ability and common tools could install the whole package in two days.

As an added benefit, the modern steering allows using a smaller, 15-inch steering wheel, which improves interior comfort. To add a bit more legroom to pre-1962 models, Kohn suggests installing 1961-62 style seats that have integral frames.

8 Reader Comments

  • 1
    mike candia, nh October 28, 2016 at 14:37
    Installed Steeroids, with power steering, in my 61 Vette in less than 8 hours and it was well worth the investment. No more drifting around, due to the ancient steering configuration, when driving and fighting the wheel when parking. Smaller steering wheel is also a great addition.
  • 2
    Tom Cox Mitchell, IN October 28, 2016 at 12:37
    was wondering if the kit, or any other kit would work in a 65 Vette. I understand that it is 51 years old, but would like it to steer better and not want to change lanes when you power up.
  • 3
    Mike DeWitt, MI October 28, 2016 at 12:51
    Would love to see a similar article on the C4 Vette. I have an '89 that rides like a jeep.
  • 4
    Sid Idaho November 1, 2016 at 11:56
    I agree with Burton Hall. When I drive my stock** 1958 Corvette I feel like I am getting a history lesson on what it was like to drive back in the day. Not that I don't understand the desire to change, modify and upgrade. I have done that to plenty of old cars over my lifetime. But for this particular car at this particular time in my life it is fun to put up with and experience 1958 in 2016. (**disclosure: I'm not a 100% purist since I added a generator-look alternator so I could hide an electric fan under the shroud......and a hidden MSD ignition module so I could tame down those perky dual points....Oh yes, and a radio with a USB input so I could play my favorite tunes from 1958...I guess I didn't want to experience everything about 1958....hmmmm those Coker radials sound nice too)
  • 5
    Larry Seattle November 27, 2016 at 11:30
    I own a 1963 corvette, would like power steering, is there anyone in the area that could install it.
  • 6
    Lewis Snohomish,Wa December 19, 2016 at 12:16
    Larry: I have a 63 and I installed power steering myself. Can give pointers
  • 7
    Steve Atlanta June 26, 2017 at 09:50
    I had a shop install the steeroids power steering in my '62 Corvette a couple years ago. It's never worked well. Steering is very touchy at speeds above 45 MPH, especially around bends in the road. The steering seems fine as you go into the bend but in an instant, the car veers hard in the direction your steering. I've had three shops look at it with no success. Any similar experiences? Solutions?
  • 8
    Alan Peachtree Corners, GA July 7, 2017 at 18:35
    Looking into Steeroids for my '61 Corvette. Steve, depending on tire size, you can add more caster to make the front end track.

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