I've attached pictures of my monospring splintering. Do these need replacing or are they OK?

TIA

 

You need to replace spring, before it "snaps" which will be a bad day.

 

The top one is the front and looks the worst. The last 2 are on the left & right side of the rear. Both front and back need replacing?

Also, where do I go to get a new one (or used with no splintering?)


out of curiosity, what happens when the 'snap'?

 

I would not want those.

Look on eaby, or similar places.

A guy bought my stock vert springs from me, they were old but not bad to the eye at least. i think I charged him like 80 for both?

 

What year is your car? There's 3 style front springs, through '87 and then 2 styles for the '88+. I'm quite sure I have both later style fronts with 20K miles. I would need to check codes. I have 2 rears - one is a 20K match to the front and the other is from a purchase I did of several rears and assorted parts a fellow had for spares for a Hot Rod. It was sold to him as 'new'!! It's certainly pretty!

 

Looks like those springs have been used for offroading or an airplane drop.

 

My vette is a '96

 

Check here for the proper part

https://www.corvetteactioncenter.com...l#.USlImDcSv6k

 

I would be interested in your monoleaf. Do I need to look up mine on the chart provided jrrifle, I think its a base model.

 

I put my hands on the earlier one and I'll look for the later one this evening. Your '96 would have what I consider the later. All of the salvage Corvette dealers mention 'same' and sell as that '88+.

There is a difference in the fabrication on each end where it rests on the control arm. The trim height dimensions in the FSM vary for the years involved. I would need someone to understand what they're buying before I shipped. Mine is a FHA correct for '91 and earlier.

This is what I believe to be correct for the later C4 where it rests on the control arm.

'92 and later maybe fabricated like this. Earlier just a large triangular pad. Make a difference?

 

I'll take a look and let you know. You're right about the listings out there, both new and old they all say '88+

 

I thought I had a snapshot of them side by side but I can't put my hands on it either. I've got some information on another PC that's currently not available. I'll poke around and look for the later spring this evening. I don't recall selling it.

 

Found this information a few years ago for spring codes by years.
Maybe helpful to you.

SPRING CODES

FRONT 84-87
BMB 102
HMZ 63.5
FHU 63.5
HKX 39.9
HMP 39.9
HM2? 57.2
HMN 54.4

FRONT 88-96
FHA 93.1
FHB 115.5
FHC 93.1
AA 96.2
FSK 90.1
FSM 75.4
FSS 90.1
FSR 73.2
HA 60
JA 60

REAR 84-96
BMF 72.0
BMH 87.5
NYU 57.2
NYR 39.9
RCA 39.9
RHY 33.0
RHZ 26.0
RR? 26.0

REAR SPRING DATA

Code #/in [N/mm] Year(s) GM part # GM Service Parts Catalog
---- ---- ------- ------- -------- ------------------------
BMH 499 [87.5] 1984 14045786 . . . . . . . . . . 7-H19
BMF 411 [72.0] 1984 14045785 . . . . . . . . . . 7-H19
NYU 326 [57.2] 1985-95 14080196 . . . . . . . . . . 7-H19 7-H22 7-I3
NYR 228 [39.9] 1985-93 22112253 . . . . . . . . . . 7-H19 7-H22 7-I3
RCA 228 [39.9] 1986-96 14106787 . . . . . . . . . . 7-H19 7-H22 7-I4
RHY 188 [33.0] 1992-96 17999322 . . . . . . . . . . 7-I4
RHZ 148 [26.0] 1994-96 22112253 . . . . . . . . . . 7-I4
___?d 148 [26.0] 1994-95 22112254 convertible FE1 (SR) FX3 . 7-I3 no 3 letter code –
Code #/in [N/mm] Year(s) GM part # GM Service Parts Catalog
---- ---- ------- ------- -------- ------------------------
FRONT SPRING DATA

FHB 590 [115.5] 1988-91 10048553 . . . . . . . . . . 7-E9 7-E13 7-E19
BMB 521 [102.0] 1984 14045782 . . . . . . . . . . - not in microfiche
AA 491 [96.2] 1990-91 17988598 . . . . . . . . . . 7-E13 7-E19
FHA 476 [93.1] 1988-91 10048552 coupe FX3 FE7 + L98 7-E9 7-E13 7-E19
FHC 476 [93.1] 1988-91 10048574 conv FE1 (SR) . . 7-E9 7-E1347-E19
FSK 460 [90.1] 1992-95 17997091 . . . . . . . . . . 7-E19
FSM 385 [75.4] 1992-95 17997093 . . . . . . . . . . 7-E19
HMZ?a 379 [66.5] 1986-87 14106617 coupe FE7 ___ . . - not in microfiche
FSR 374 [73.2] 1992-95 17999031 conv FE1 (SR) . . 7-E19
FSS 374 [73.2] 1992-96 17999032 coupe FE1 (SR) . . 7-E19 7-E20
HMP 362 [63.5] 1984-87 14106617 . . . . . . . . . . 7-E5
HMP 379 [66.5] 1984-87 14106617 . . . . . . . . . . 7-E5
HA 306 [60.0] 1989-95 22145203 coupe FE1 (SR) FX3 7-E13 7-E20
JA 306 [60.0] 1994-95 22145227 conv FE1 (SR) FX3 7-E19
...?b 306 [60.0] 1995 22173029 conv FX3 (ER) . . 7-E19 no 3 letter code
...?c 306 [60.0] 1996 22173028 coupe FE1 (SR) . . 7-E19 no 3 letter code
HMN 278 [54.4] 1986-87 14094457 conv FE1 (SR) . . -
HKX 276 [54.0] 1985 14094458 . . . . . . . . . . page 7-C24 microfiche
HMP 261 [51.8] 1986-87 14094458 . . . . . . . . . .

 

I believe at some point you need to avoid some of this information and rely on what you know! I know the fabrication of the '88 and later springs changed. I ain't going to send someone a spring that when he removes his and sees the physical difference wonders 'what the he!! is this' and I become the 'bad guy'!!

 

Exactly why I sent him the chart.
Its the best one so far and then he can find the numbers and codes to find the proper replacement.

 

But you are already the Bad Guy.

 

I believe a three (or four) digit code is stamped into each spring. He should check his springs and try and locate the code. Then he can look for replacement springs with the same code. That's how I tracked down the springs I purchased for my 69.

 

Ok great. No immediate need,but I need to find a set.
Thanks

 

Same happened to my spring, she was quite low and one day she broke and air dam hit the bitumen....... undrivable
It may take time but it will snap eventually.........
Went to coilovers after a replacement spring was the wrong ride height, I had a koni coilover break the top of the shaft at the end of the thread. It got me home though. The coilover spring stayed put and kept the front of the car up of the bitumen.

The koni coilovers shaft was 1/2'' so not up to the stresses,
went to QA1 with 5/8 shaft all good now.

 

The 1996 base had the softest springs. If you are concerned about harsh ride you want a 93 or later springs if you can't find 96 springs when you're ready to change them.