C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Rear spring bolt size?

Thread Tools
 
Search this Thread
 
Old Sep 14, 2006 | 08:00 AM
  #1  
eddiemeddiem's Avatar
eddiemeddiem
Thread Starter
Intermediate
 
Joined: Mar 2005
Posts: 31
Likes: 0
Default Rear spring bolt size?

What is the size of the rear spring bolts (length/thread size)? I just finished installing new bushings along with a new composite rear spring, and it's riding too high. I'd just like to order two more bolts from McMaster, since I have some other stuff to order from them today...

Thanks!

-Eddie
Reply
Old Sep 14, 2006 | 02:47 PM
  #2  
FKING1's Avatar
FKING1
Safety Car
15 Year Member
 
Joined: May 2003
Posts: 3,814
Likes: 105
From: Dearborn Heights Michigan
Default

In my 70 the rear spring bolts were 1/2" x 6-1/2. I replaced with
1/2 x 8 and the rear dropped about 2".

Fred
Reply
Old Sep 14, 2006 | 03:13 PM
  #3  
70 LS1's Avatar
70 LS1
Melting Slicks
15 Year Member
 
Joined: May 2001
Posts: 2,812
Likes: 4
From: Gig Harbor Wa
Default

Isn't stock a 9/16 thread?
Reply
Old Sep 14, 2006 | 03:15 PM
  #4  
S489's Avatar
S489
Burning Brakes
 
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
Default

eddiemeddiem,
out of curiosity, what spring and shocks did you install? sway bar?
am going to be getting to this same project hopefully later this year
thanks
Reply
Old Sep 15, 2006 | 04:55 PM
  #5  
FKING1's Avatar
FKING1
Safety Car
15 Year Member
 
Joined: May 2003
Posts: 3,814
Likes: 105
From: Dearborn Heights Michigan
Default

Originally Posted by 70 LS1
Isn't stock a 9/16 thread?
All I know is the bolts I took out were 1/2". It is possible a previous owner changed them, but, doubt it.

Fred
Reply
Old Sep 15, 2006 | 05:15 PM
  #6  
Van Steel's Avatar
Van Steel
Premium Supporting Vendor
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2000
Posts: 4,312
Likes: 70
From: Clearwater FL
Default

What spring did you get? How far did you run the nut up on the bolt?
Reply
Old Sep 15, 2006 | 06:52 PM
  #7  
69autoXr's Avatar
69autoXr
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2004
Posts: 3,247
Likes: 210
From: Detroit MI
Default

Anybody know where I could get some 9 or 9.5" long 9/16 bolts?
Reply
Old Sep 16, 2006 | 09:21 AM
  #8  
pws69's Avatar
pws69
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Default

Originally Posted by 69autoXr
Anybody know where I could get some 9 or 9.5" long 9/16 bolts?
Try a Truck Repair/Supply shop. I find most of the larger size and grade 8 nuts and bolts there.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

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

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Sep 16, 2006 | 11:25 PM
  #9  
FKING1's Avatar
FKING1
Safety Car
15 Year Member
 
Joined: May 2003
Posts: 3,814
Likes: 105
From: Dearborn Heights Michigan
Default

Originally Posted by 69autoXr
Anybody know where I could get some 9 or 9.5" long 9/16 bolts?
Tradesman Fastener at 25136 Five Mile just west of Telegraph. They have just about any kind of fastener made including Grade 8's.
Fred
Reply
Old Sep 19, 2006 | 09:06 AM
  #10  
69autoXr's Avatar
69autoXr
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2004
Posts: 3,247
Likes: 210
From: Detroit MI
Default

Originally Posted by FKING1
Tradesman Fastener at 25136 Five Mile just west of Telegraph. They have just about any kind of fastener made including Grade 8's.
Fred
Thanks Fred, they didn't have anything that long but they referred me to Wayne Nut & Bolt in Detroit, who had some 10" bolts. I can cut bolts...
Reply

Get notified of new replies

To Rear spring bolt size?





All times are GMT -4. The time now is 09:16 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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