Front & Rear Springs

[musuraca]

I'm looking for both the front and rear spring for my 94 Top Flight with 22,000 miles. The front spring delaminated in the center section and the rear has a 1 inch fracture all the way through. The parts are 17997093 Front and 17999322 Rear, and, of course, both are discontinued. The aftermarket doesn't seem to offer the front one. Any ideas or recommendations will be appreciated.
Thank you, Joe

[cvette98pacecar]

Originally Posted by musuraca

I'm looking for both the front and rear spring for my 94 Top Flight with 22,000 miles. The front spring delaminated in the center section and the rear has a 1 inch fracture all the way through. The parts are 17997093 Front and 17999322 Rear, and, of course, both are discontinued. The aftermarket doesn't seem to offer the front one. Any ideas or recommendations will be appreciated.
Thank you, Joe

Joe, is it the same part number as a 90 or 91? If it is I may have both. That is if I didn't leave them in Michigan.

[musuraca]

Robert,
Thank you for your quick response. Unfortunately, 90/91 are different part numbers from 92/95.
Thanks again,
Joe

[DRM500RUBYZR-1]

Originally Posted by musuraca

Robert,
Thank you for your quick response. Unfortunately, 90/91 are different part numbers from 92/95.
Thanks again,
Joe

Correct.

Both springs are unique to ZR-1's.
Some were removed by those that changed to Coil overs and may be floating around.

If safety is a concern, and it should be, get any of the C-4 springs that are even remotely close to the rate of the ZR-1 spring.
Refer to Hib's chart at the Corvette Action Center

If judging is the concern do not dispose of the code tag from your existing spring, as that likely will be the only way to evidence a "correct" one.

These springs typically fail from the vehicle being tightened with a strap too aggressively when on a flatbed or a trailer.

The spring is not robust enough to handle being flexed the wrong way in those situations.

I have never found a new correct ZR-1 replacement spring.

But, things change.

Good luck!

Marty

[Stingray1967]

Joe, just curious what spring code you have in the car right now.

[musuraca]

Stingray67,
Thanks for responding.
The rear spring is RHY. I can't see the front marking, but the NCRS manual states FSM.
Joe

[Stingray1967]

Originally Posted by musuraca

Stingray67,
Thanks for responding.
The rear spring is RHY. I can't see the front marking, but the NCRS manual states FSM.
Joe

Joe,
I also have a '94 that has a standard coupe HA code spring in it. And the car is sitting about 2 inches too low up front. I just bought an FHA code spring from Mirrock and will be installing it at the end of the month. FSM code springs are like hens' teeth. I also found an older ZR-1 Registry post from Marc Haibeck who said he has only ever seen FHA code springs on ANY ZR-1 he has ever done. That's why I was OK trying the FHA code. I'll let you know how it works out.

Not worried about the rear spring, mine is RHY as well and it sitting about right, ride height wise.

[musuraca]

Looking forward to hearing from you.
Joe

[musuraca]

Good news. I was able to pick up the correct springs from Marc Haibeck.
Case closed.

[musuraca]

Marty,
Thanks for responding.
I'll be patient.
Joe