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 bolt question??

Thread Tools
 
Search this Thread
 
Old Oct 17, 2001 | 03:23 PM
  #1  
venom98's Avatar
venom98
Thread Starter
Intermediate
10 Year Member
 
Joined: Sep 2001
Posts: 26
Likes: 0
From: pgh pa
Default lowering bolt question??

is it possible to pull the front lowering bolts out completely? i want the car to be as low as it can be. anyone else have their bolts out?


:cheers:
Reply
Old Oct 17, 2001 | 03:35 PM
  #2  
joeflyer's Avatar
joeflyer
Drifting
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Dec 1999
Posts: 1,677
Likes: 22
From: Newark CA
Default Re: lowering bolt question?? (venom98)

Here's my version of the procedure. The procedure works on all suspensions. It's not a simple task, though.

Set the parking brake, raise the front of the car with a floor jack. For the front suspension adjustment, set jack stands under the frame at the sides or front crossmember. Loosen the lug nuts. For the rear adjustment, set jack stands under the rear crossmember. The rear wheels do not need to be removed. If working on either the front or back separately, block the tires.

Front suspension

1. Remove the wheels.

2. Disconnect the sway bar from the lower control arm. Hold the nut with an 18mm wrench and turn the link clockwise with a #35 Torx bit in a ratchet. Remove both left and right side nuts. Rotate the sway bar up, dislodging both links from the control arms.

3. Use a jack and small wooden block to support the leaf spring between the sides of one of the control arms (left or right side).

4. Remove the two bolts and nuts on the lower end of the shock absorber. Hold each bolt (at the top) with a 13mm wrench and turn the nut with a 13mm socket using a short extension and ratchet. Remove the bolts.

5. Remove the nut on the lower control arm balljoint. Turn the nut counterclockwise with a 13/16" wrench or socket. It may be necessary to hold the end of the balljoint while turning the nut. The end of the balljoint is a 6mm allen socket. I used a 13/16" sparkplug socket that could be held with a wrench to remove the nut. To hold the balljoint, I used a 6mm allen wrench cut down to 1 ½ inches in length, attached to a ¼"-drive ratchet.

6. Lower the jack and the control arm should drop. If it doesn't, raise the jack and replace the nut part way. Place the jack and block under the brake rotor. Lightly tap on the top of the nut with a wooden block and hammer to free up the balljoint. Once the balljoint is loose, lower the jack and place it under the control arm. Remove the nut and lower the jack.

7. Remove the clip from the adjustment bolt that is screwed into the leaf spring. It should turn counterclockwise, or it may be necessary to use long-nose pliers to pull it off. Turn the bolt clockwise with a 10mm ratcheting wrench or 10mm socket and ratchet to remove it. It will be necessary to push down on the control arm and turn the bolt from underneath to remove it completely.

8. Clamp the bolt in a vise and cut off ¾ of the rubber bushing with a hacksaw. Clean up the face of the remaining bushing with sandpaper.

9. Replace the bolt in the spring, and use the wrench or socket to raise the bolt until the flat portion contacts the bottom of the spring. Reinstall the clip. The front suspension is now adjusted as low as it can go. If it is later necessary to raise the body, all that needs to be done is to jack up the car and turn the bolt clockwise some.

10. Insert the lower balljoint into the spindle and replace the nut loosely. Place the jack and block under the control arm and raise the arm. Align the shock-absorber holes and drop the bolts in. Apply a drop of blue Locktite on the nut threads and tighten the nut on the balljoint. Apply Locktite on the shock-absorber nut threads and tighten the nuts on the shock absorber.

11. Repeat steps 3 through 10 for the other side of the suspension. Insert the sway-bar bolts by rotating the bar, then apply Locktite and tighten the nuts.

12. Lift the car, remove the jack stands, and lower the car. Put some miles on the car, the check the ride height.

Tools for Lowering

3/8" ratchet
3" X 3/8" extension
3/8" to ¼" adapter
6 mm X 1 ½" allen-head bit
6 mm X 3 ½" allen-head bit
10 mm socket
13 mm socket
13 mm combination wrench
carpenter's level
tape measure
blue locktite
torque wrench
¾" X ½"-drive socket
breaker bar
6" X ½" extension
3/16 flat screwdriver
T35 Torx drive
Hacksaw
Vice
¼"-drive nut driver
6 mm socket
drop light
floor jack
drive-on blocks
jack stands


Reply
Old Oct 18, 2001 | 01:36 AM
  #3  
corvette dave's Avatar
corvette dave
Melting Slicks
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
All Eyes On Me
 
Joined: Nov 2000
Posts: 2,329
Likes: 30
From: USA
Default Re: lowering bolt question?? (venom98)

Several people on this forum have taken the adjusting bolt on the front out. You then have metal to metal contact which I would not do.
You can put or glue a thin piece of rubber between the lower control arm and the spring if you want.
Reply
Old Oct 18, 2001 | 03:48 AM
  #4  
NastyC5's Avatar
NastyC5
Melting Slicks
 
Joined: Aug 1999
Posts: 2,012
Likes: 0
From: bay area,CA,USA
Default Re: lowering bolt question?? (venom98)

venom98 I removed my bolts. I first tried to cut 2/3 of the bushing but that wasn't low enough for me so I removed them :smash:
Reply

Get notified of new replies

To lowering bolt question??





All times are GMT -4. The time now is 07:40 PM.

story-0
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-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE