C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Lowering Problems

Thread Tools
 
Search this Thread
 
Old May 30, 2007 | 11:03 PM
  #1  
shihiran's Avatar
shihiran
Thread Starter
Racer
15 Year Member
 
Joined: Sep 2006
Posts: 412
Likes: 0
From: FLORISSANT MO.
Default Lowering Problems

Hey All, I Need Help. I Was Lowering My 98 Vet On The Stock Bolts. The Rear Was No Problem, The Two Front Bolts I Could Not Turn At All I Think There Lock.
Reply
Old May 30, 2007 | 11:15 PM
  #2  
roushraven's Avatar
roushraven
Coolest Guy Evar!
Supporting Lifetime
10 Year Member
 
Joined: Nov 2003
Posts: 1,570
Likes: 3
From: Fairfax VA
Default

Did you relieve tension on the front leaf spring?
Reply
Old May 30, 2007 | 11:18 PM
  #3  
shihiran's Avatar
shihiran
Thread Starter
Racer
15 Year Member
 
Joined: Sep 2006
Posts: 412
Likes: 0
From: FLORISSANT MO.
Default

Yes I Did Jack Up The Leaf Spring
Reply
Old May 31, 2007 | 02:47 AM
  #4  
NITRO UK's Avatar
NITRO UK
Burning Brakes
 
Joined: Sep 2006
Posts: 936
Likes: 8
From: England United Kingdom
Default

hi
try w d 40, penertrating oil.
Reply
Old May 31, 2007 | 09:27 AM
  #5  
C5 ChemE's Avatar
C5 ChemE
Burning Brakes
15 Year Member
 
Joined: Jul 2004
Posts: 1,200
Likes: 0
From: Branchburg, NJ
Default

I had the same issue with my fronts. Tried EVERY trick the forum members suggested, and none worked. Finally stripped the heads off the bolts and just gave up.

My last resort, which I haven't tried yet, is taking the whole spring out, sticking the bolt in a vice, and turning the whole spring.

Mine's hopeless, but hopefully you get yours straightened out.
Reply
Old May 31, 2007 | 09:43 AM
  #6  
roushraven's Avatar
roushraven
Coolest Guy Evar!
Supporting Lifetime
10 Year Member
 
Joined: Nov 2003
Posts: 1,570
Likes: 3
From: Fairfax VA
Default

Originally Posted by C5 ChemE
I had the same issue with my fronts. Tried EVERY trick the forum members suggested, and none worked. Finally stripped the heads off the bolts and just gave up.

My last resort, which I haven't tried yet, is taking the whole spring out, sticking the bolt in a vice, and turning the whole spring.

Mine's hopeless, but hopefully you get yours straightened out.
Before going to that extreme you could relieve just enough tension to raise the spring side you are trying to adjust. Then use channel lock pliers on the base of the isolator and turn it. If that doesn't work, then yes remove the spring completely from the car; adjust and replace.

-RR
Reply
Old May 31, 2007 | 10:17 AM
  #7  
Fast one's Avatar
Fast one
Safety Car
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 4,994
Likes: 503
From: Hilton NY
Default

There is a smooth steel insert molded into the plastic spring that the bolt screws into. As a last resort it is possible to tap the insert down with a deep well socket or tube over the bolt so that the insert separates from the spring. You can see part of the insert top at the bottom of the bolt. The removed insert/ bolt can be put in a vice and heated so that the bolt will unscrew. The insert threads should be cleaned with a tap then the insert is epoxied back into the spring, just degrease the areas to be glued. Since the hole that the insert fits is not all the way through the spring the strength is not compromised. It might be necessary to separate the lower ball joint from the steering knuckle for more room to work but do not use a pickle fork since it will ruin the ball joint seal. Most of these bolts respond to penetrating oil but some don't. I protected the spring with aluminum sheet/ aluminum foil and used heat on the bolt along with Kroil and the result was the insert rotating with the bolt, that's when it was tapped down and out with a hammer. I had to do this three years ago on my '98 and it worked well. I don't know if the inserts were redesigned on later years.
Reply
Old May 31, 2007 | 11:30 PM
  #8  
shihiran's Avatar
shihiran
Thread Starter
Racer
15 Year Member
 
Joined: Sep 2006
Posts: 412
Likes: 0
From: FLORISSANT MO.
Default

Originally Posted by Fast one
There is a smooth steel insert molded into the plastic spring that the bolt screws into. As a last resort it is possible to tap the insert down with a deep well socket or tube over the bolt so that the insert separates from the spring. You can see part of the insert top at the bottom of the bolt. The removed insert/ bolt can be put in a vice and heated so that the bolt will unscrew. The insert threads should be cleaned with a tap then the insert is epoxied back into the spring, just degrease the areas to be glued. Since the hole that the insert fits is not all the way through the spring the strength is not compromised. It might be necessary to separate the lower ball joint from the steering knuckle for more room to work but do not use a pickle fork since it will ruin the ball joint seal. Most of these bolts respond to penetrating oil but some don't. I protected the spring with aluminum sheet/ aluminum foil and used heat on the bolt along with Kroil and the result was the insert rotating with the bolt, that's when it was tapped down and out with a hammer. I had to do this three years ago on my '98 and it worked well. I don't know if the inserts were redesigned on later years.
THAT SOUND LIKE A LOT OF WORK.WHY THE SHOP I TOOK IT TO COULDN'T LOWER THE FRONT EITHER. THEY SAID IT WILL BE $200 IF THEY DO LOWER IT. WHEN MY FRIEND JUST GOT HIS 99 LOWER RIGHT BEFORE ME FOR $75.
Reply

Get notified of new replies

To Lowering Problems

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski




All times are GMT -4. The time now is 05:33 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE