C4 General Discussion General C4 Corvette Discussion not covered in Tech

Reinstalling Front Monoleaf

Thread Tools
 
Search this Thread
 
Old Mar 16, 2023 | 11:15 AM
  #1  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default Reinstalling Front Monoleaf

Hey all,

Have been searching the forums for a while now with no solid results, so I figured I might as well ask.
I've been working on installing front wedges on my 85' which has proved to be a little bit more of a headache than initially expected. So far I've completed what I believe to be around half of the work, with the spring completely removed, wedges glued to the spring, upgraded brackets cut/filed down, etc. As of now, the spring sits in the cross member and the control arms are back on. I read in a writeup of the installation that in order to get the spring to seat evenly in both control arms, it can be tricky and getting both sides at the same time is the ideal way to do so. I expected this would not pose a significant issue as it came out easy enough, but alas, here I am.

How in the world did you guys get the spring to sit nicely in the control arms? My current strategy has been moving the spring further out of one side, jacking it up to have it seat properly, then coming to the other side only to never get it to pop into place, or be too far out to even attempt to fit it in with the ball joint in the way.

I'll be popping out the lower ball joints before I try again, to give myself more clearance and because I have to install new ones anyways. I was going to see how some silicone grease would work to get the rubber to slide into the a-arm easier, if it's just a matter of too much friction and downward pressure. I think I'm rambling now...

Cheers.
Reply
Old Mar 16, 2023 | 11:46 AM
  #2  
Daniel_Mc's Avatar
Daniel_Mc
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2002
Posts: 1,128
Likes: 69
From: Pineville Louisiana
Default

I have never needed to pull the ball joints just clean and grease the A arm and the spring pad, it should go right in.

-Daniel
Reply
Old Mar 16, 2023 | 11:49 AM
  #3  
Yonker's Avatar
Yonker
Racer
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Oct 2012
Posts: 280
Likes: 82
From: Indiana
Default

You don't have to move the spring from side to side. It's bolted to the frame in the middle and is self centring with the lowering blocks you glued on. Tighten the four bolts that hold the spring to frame and reattach each control arm, and no, the control arms do not have to be reinstalled at the same time.
Reply
Old Mar 16, 2023 | 12:38 PM
  #4  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default

Originally Posted by Yonker
You don't have to move the spring from side to side. It's bolted to the frame in the middle and is self centring with the lowering blocks you glued on. Tighten the four bolts that hold the spring to frame and reattach each control arm, and no, the control arms do not have to be reinstalled at the same time.
hmm.... let me see if I follow. The wedges installed onto the springs are designed to pivot- similar to the original plastic pieces- and will make up for any offset side to side? That itself makes enough sense, so I can definitely see that. When you say bolted to the middle, do you simply mean the brackets? I tried installing the brackets off the bat, but the spring does need to be compressed quite a bit. I assumed it would be easiest to center it on the control arms / have it under tension in some way to have the spring sit closer to the frame enabling me to actually install said bolts and have it tightened up, but I may have this process completely backwards.

May this be a difference between the 85 (early) and later vettes? As I do see you have a 94.
Reply
Old Mar 16, 2023 | 12:39 PM
  #5  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default

Originally Posted by Daniel_Mc
I have never needed to pull the ball joints just clean and grease the A arm and the spring pad, it should go right in.

-Daniel
Great to hear that. Will be giving it another shot tonight.
Reply
Old Mar 17, 2023 | 06:09 PM
  #6  
Yonker's Avatar
Yonker
Racer
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Oct 2012
Posts: 280
Likes: 82
From: Indiana
Default

Originally Posted by Lord
hmm.... let me see if I follow. The wedges installed onto the springs are designed to pivot- similar to the original plastic pieces- and will make up for any offset side to side? That itself makes enough sense, so I can definitely see that. When you say bolted to the middle, do you simply mean the brackets? I tried installing the brackets off the bat, but the spring does need to be compressed quite a bit. I assumed it would be easiest to center it on the control arms / have it under tension in some way to have the spring sit closer to the frame enabling me to actually install said bolts and have it tightened up, but I may have this process completely backwards.

May this be a difference between the 85 (early) and later vettes? As I do see you have a 94.
Technically not directly in the middle, but the metal brackets that attach it to the frame, which are each off center and not in the middle. Either way, bolt that sucker down and install your lower control arms.
Reply
Old Mar 17, 2023 | 10:51 PM
  #7  
FAUEE's Avatar
FAUEE
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2012
Posts: 17,338
Likes: 6,509
From: Melbourne, FL
Default

I think what I did (real hazy memory here so take it with a bag of salt), is get it in the control arm on one side, lift it with a jack on the other, bolt it in the middle, then so the other control arm.
Reply
Old Mar 18, 2023 | 01:27 PM
  #8  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default

Originally Posted by Yonker
Technically not directly in the middle, but the metal brackets that attach it to the frame, which are each off center and not in the middle. Either way, bolt that sucker down and install your lower control arms.
Originally Posted by FAUEE
I think what I did (real hazy memory here so take it with a bag of salt), is get it in the control arm on one side, lift it with a jack on the other, bolt it in the middle, then so the other control arm.
makes much more sense. gonna bolt them both in today, thanks for the replies fellas
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-4

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-5

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-6

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-7

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-8

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Mar 21, 2023 | 02:19 PM
  #9  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default

Got everything back together and the car is back to full functionality! (Save for some scraping.)

Centering the spring in the earlier models, in my experience, is not exactly super important because it won't fit in unless it is more or less even on both sides. Compressed one side with the spring seated properly, both sides with a small amount of grease and a good cleaning, bolted all the brackets and hardware in, and did the same to the other side. No problems at all. The spring retaining brackets that hold the rubber bits of the spring were bolted in last, after I had the spring up in the car and a-arms. Took a bit of raising it up but eventually I got them nice and tight against the frame.

Thanks all!
Reply
Old Mar 21, 2023 | 02:26 PM
  #10  
Lord's Avatar
Lord
Thread Starter
Heel & Toe
 
Joined: Apr 2022
Posts: 22
Likes: 3
From: Vancouver, WA
Default

Final bit of clarification if there is any brave soul attempting this job on an earlier (maybe only 85?) corvette today.

https://www.corvetteforum.com/forums...i-missing.html
In this thread here, OP is having trouble with the spring not coming loose from the a-arm. I had the same problem, which I quickly found to be the spring finding a bracket of sorts under the a-arm bolts to hang onto and retain it's tension. The a-arms were under no pressure and could be removed, but the spring would not slide. If you somehow did force the spring to slide out one way or the other, it would be under such immense pressure that I would never want to have to read about the results of such an experiment on our forum.

That's all for me
Reply

Get notified of new replies

To Reinstalling Front Monoleaf





All times are GMT -4. The time now is 03:37 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE