C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Working Under a C3 Convertible

Thread Tools
 
Search this Thread
 
Old Mar 2, 2024 | 11:07 AM
  #1  
Sunburned69's Avatar
Sunburned69
Thread Starter
Intermediate
All Eyes On Me
 
Joined: Sep 2023
Posts: 28
Likes: 9
Default Working Under a C3 Convertible

I need to do some work under my 69 and am wondering what you guys use to get that baby off the ground and work under her safely (in my younger days I thought a floor jack was sufficient but no longer believe that)...

Is a floor jack combined with jack stands enough?
Anyone used those car ramps with the built in bottle jacks?
Any other suggestions?

Thanks!
Reply
Old Mar 2, 2024 | 12:13 PM
  #2  
calwldlife's Avatar
calwldlife
Team Owner
15 Year Member
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
Default

yes.


I use all of above depending on what I want.
Reply
Old Mar 2, 2024 | 12:15 PM
  #3  
The Former's Avatar
The Former
Banned Scam/Spammer
 
Joined: Mar 2007
Posts: 3,684
Likes: 425
From: Indiana Cornfield
Default

Originally Posted by Sunburned69
I need to do some work under my 69 and am wondering what you guys use to get that baby off the ground and work under her safely (in my younger days I thought a floor jack was sufficient but no longer believe that)...

Is a floor jack combined with jack stands enough?
Anyone used those car ramps with the built in bottle jacks?
Any other suggestions?

Thanks!
Floor jack onto jack stands. That will work well and safe. You only need to screw up once to wish you hadn't.
Reply
Old Mar 2, 2024 | 12:26 PM
  #4  
carriljc's Avatar
carriljc
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Default

Sunburned69
If you can swing it then just get a quickjack. I got one in the fall of 2023 after using jacks and ramps for decades. It is wonderful. Some place had some on sale here recently. Let me see if I can find the post.

Last edited by carriljc; Mar 2, 2024 at 12:45 PM.
Reply
Old Mar 2, 2024 | 12:27 PM
  #5  
Bikespace's Avatar
Bikespace
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 11,953
Likes: 4,510
From: Virginia
Default

Nose up on long RaceRamps, then jack rear onto jackstands (by the diff or by the steel rear spring with a spreader bar), then jack front onto jackstands (by the front crossmember). That way, the car NEVER rolls side to side on jackstands, and barely rocks (pitches) front to back..

Or get Quickjacks from Costco.

Reply
Old Mar 2, 2024 | 12:44 PM
  #6  
carriljc's Avatar
carriljc
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Default

Sunburned69
Here you go. Costco has a sale going on. That is 100 bucks less than I paid in the fall of 2023 and I was ok with that sale. https://www.costco.com/quickjack-500...100833778.html
Reply
Old Mar 2, 2024 | 01:00 PM
  #7  
69L88's Avatar
69L88
Melting Slicks
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Nov 2006
Posts: 3,415
Likes: 1,824
From: Apple Valley, MN
Default

Please keep one word in mind at all times -SAFETY. Not worth risk your life by cutting corners here.

Never, ever, trust a jack alone.

Any jackstand you buy from the “tool stores” should be considered highly suspect, given where they are produced and you have no idea of the quality control, or most likely, lack thereof, of what you are getting. If you use jackstands, get some lumber and put under the tires or another location to provide a secondary means of support. If you remove the tires as part of your project, push them underneath as well for additional safety.

Last edited by 69L88; Mar 2, 2024 at 10:40 PM.
Reply
Old Mar 2, 2024 | 01:24 PM
  #8  
Sunburned69's Avatar
Sunburned69
Thread Starter
Intermediate
All Eyes On Me
 
Joined: Sep 2023
Posts: 28
Likes: 9
Default

Thanks for all the great tips guys...As a newbie to this hobby/vice I'd be lost without this forum and the great advice!
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 Mar 2, 2024 | 03:27 PM
  #9  
ratflinger's Avatar
ratflinger
NCM Grand Opening Veteran
Supporting Lifetime Gold
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 2005
Posts: 20,979
Likes: 384
From: South of giving a damn
St. Jude Donor '11, '17
Default

4-post lift, can't be beat.
Reply
Old Mar 2, 2024 | 04:33 PM
  #10  
kanvasman's Avatar
kanvasman
Safety Car
10 Year Member
Liked
Community Favorite
Top Answer: 5
 
Joined: Dec 2012
Posts: 3,820
Likes: 1,728
From: Summerville SC
Default

Another quickjack fan. Using it safely on my C3 and my C6... and my wife's mini cooper! Worth every penny.
Reply
Old Mar 2, 2024 | 04:56 PM
  #11  
BarrelCurve's Avatar
BarrelCurve
Instructor
Liked
Loved
Community Favorite
 
Joined: Nov 2023
Posts: 195
Likes: 72
From: Raleigh, NC
Default

Originally Posted by carriljc
Sunburned69
Here you go. Costco has a sale going on. That is 100 bucks less than I paid in the fall of 2023 and I was ok with that sale. https://www.costco.com/quickjack-500...100833778.html
I picked these up from a sale at Lowe’s recently. Haven’t had a chance to use them, but several people here and elsewhere vouched for them so I pulled the trigger!!!
Reply
Old Mar 2, 2024 | 05:36 PM
  #12  
71 Vert LS1's Avatar
71 Vert LS1
Melting Slicks
Veteran: Army
15 Year Member
Top Answer: 1
Top Answer: 3
 
Joined: Sep 2010
Posts: 3,315
Likes: 697
Default

I have a several different jack stands. I believe the safest are the ones that use a cross pin to establish the height required. Having said that I also for many years used the lever locking type without issue. Both the pin type and the lever locking type are rated at 10 ton? Most I've ever had on them maybe 4000 lbs?
Also never use jack stands on asphalt unless you use at least 1/2" plywood pads under the stands.
Reply
Old Mar 2, 2024 | 08:35 PM
  #13  
carriljc's Avatar
carriljc
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Default

Sunburned69
Just FYI --- I ended up using BOTH the liquid sealant AND the teflon tape to get the non-AN fittings to seal. Just make sure to NOT to place the teflon tape over the edge where it might contaminate the system if you shred it.

I'm only sharing this to save yourself some time...... I tried to just use the liquid sealant as suggested in the instructions.... and half of the fittings weeped, so then I redid those with teflon tape...and some still weeped....so then I tore them apart and used both the liquid sealant and the teflon tape..... and I did not have to overtighten and they did NOT weep.

Originally Posted by BarrelCurve
I picked these up from a sale at Lowe’s recently. Haven’t had a chance to use them, but several people here and elsewhere vouched for them so I pulled the trigger!!!
Reply
Old Mar 4, 2024 | 08:34 PM
  #14  
Piersonpie's Avatar
Piersonpie
Melting Slicks
Shutterbug
Loved
Community Favorite
Top Answer: 5
 
Joined: Apr 2021
Posts: 2,718
Likes: 2,163
From: Minnesota
Default

Originally Posted by carriljc
Sunburned69
Just FYI --- I ended up using BOTH the liquid sealant AND the teflon tape to get the non-AN fittings to seal. Just make sure to NOT to place the teflon tape over the edge where it might contaminate the system if you shred it.

I'm only sharing this to save yourself some time...... I tried to just use the liquid sealant as suggested in the instructions.... and half of the fittings weeped, so then I redid those with teflon tape...and some still weeped....so then I tore them apart and used both the liquid sealant and the teflon tape..... and I did not have to overtighten and they did NOT weep.
+1 to using quick jacks, and the fact that the fittings leak with just the thread sealer. I’ll be redoing mine with both teflon tape and a quality thread sealer. It seems that older versions of the kit came with teflon tape, not sure why they changed that.

I haven’t used it on the C3 yet, but I lifted my buddies car. Wow is that so much easier than using a jack and stands, plus you get the car much higher. For smaller jobs like oil changes I would recommend getting ramps to just bring the front up, but any larger projects I would recommend the Quickjack.
Reply
Old Mar 4, 2024 | 11:08 PM
  #15  
ignatz's Avatar
ignatz
Safety Car
Supporting Member
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 4,364
Likes: 1,588
From: los altos hills california
Default

MaxJax - price has gone up but still worth it for convenience. I always put a support under each arm. If I lift it way up, like a clutch job, there are trailer stands for that.

Used to use cinder blocks back when I was cheap and stupid, I am so much smarter now.
Reply
Old Mar 5, 2024 | 01:10 AM
  #16  
ZIOGEO's Avatar
ZIOGEO
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Nov 2023
Posts: 703
Likes: 335
From: Aubrey TX
Default

I use ramps for anything Im doing that doesnt require the wheels to be pulled. Otherwise I use 4 leg jack stands and hyd floor jack
Reply
Old Mar 5, 2024 | 06:12 AM
  #17  
Stephen Irons's Avatar
Stephen Irons
Burning Brakes
25 Year Member
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2001
Posts: 1,219
Likes: 448
From: Loir Valley Sarthe, France
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
Default

I made a set of wooden ramps from 5x5 inch fence posts (I don't really trust the metal versions that I used for years on lighter cars). I like them for the security and the easy of access around the wheels. But, not so keen on the driving up on to them, especially at the front, which I cannot see from the drivers seat. I always need my "trusty assistant" handy!👍

But, I bought a Quick-Jack a few years ago and I love it! 🥰 I do use it as is if I'm not going to actually under the car, but I often slot axle stands in at the rear, which would prevent it dropping in the event of a failure of the locking mechanism. That said, they have been around a while now it seems and I'm not actually aware of a failure?
Reply

Get notified of new replies

To Working Under a C3 Convertible





All times are GMT -4. The time now is 04:41 AM.

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