Front End Sag on Jackstands? - Page 3 - Chevelle Tech
Chevelle Tech General Tech Area
Please try and post in specific forums

 29Likes
Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #31 of 37 (permalink) Old Feb 15th, 19, 11:13 AM
Tech Team
Chris
 
Join Date: Jul 2007
Location: Kelowna, BC, Canada
Posts: 921
Re: Front End Sag on Jackstands?

You can add me to the list of chipped paint from opening the door while on a 2 post lift. Solid frame, poly bushings everywhere, even added the "extra" body mount in the middle of the rockers. If you've ever had your car down to a bare frame, you'll know how flimsy these things are.

1969 Beaumont
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

1977 Bronco
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

The rest are boring responsible adult vehicles not worth mentioning.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Chris27 is offline  
Sponsored Links
Advertisement
 
post #32 of 37 (permalink) Old Feb 15th, 19, 11:36 AM
Gold Founding Member
Administrator
 
Join Date: Aug 1998
Location: near Kansas City
Posts: 61,035
Garage
Re: Front End Sag on Jackstands?

Quote:
Originally Posted by 72soft-top View Post
For what its worth, ANY jack stand will make a convertible deflect. Just the nature of the beast without the metal roof structure support
Convertible may sag a little more than a hard top but it really doesn't matter, it depends on where the jack stands are placed on either body style.
Placed under the control arms, the weight distribution is no different the car setting on the tires, not being raised up at all.
DUTCH MAX HEADWORK likes this.

.
.
.
.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Dean is offline  
post #33 of 37 (permalink) Old Feb 15th, 19, 11:42 AM Thread Starter
Lifetime Premium Member
Rick
 
Join Date: Sep 2018
Location: South Jersey
Posts: 191
Garage
Re: Front End Sag on Jackstands?

These responses have really been helpful; gave me many things to look out for. I think I'll be able to avoid any chipped paint. Thanks everyone.

.
427L88 likes this.
Rickles is offline  
 
post #34 of 37 (permalink) Old Feb 15th, 19, 12:45 PM
Senior Tech Team
Dan
 
Join Date: Oct 2003
Location: IOWA
Posts: 1,840
Re: Front End Sag on Jackstands?

Pay attention!
Watch your door gaps closely while starting your lift.
Check door gaps while lifting.
Use your best judgement as to whether your gaps are getting
to tight to proceed with task scheduled...
Especially opening a door if you have to!
Don't forget!
427L88 and DUTCH MAX HEADWORK like this.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
LKN BCK is offline  
post #35 of 37 (permalink) Old Feb 15th, 19, 1:26 PM
Gold Member
Gene
 
Join Date: Sep 2000
Location: Buffalo NY
Posts: 14,021
Re: Front End Sag on Jackstands?

I have to say, it really, really sucked not being aware of this , winging the door open ( working on shifter), and hearing that nasty, nasty sound. I didnt even catch it at first. stepped away to light a smoke ( I was dumb back then) and wondering how bird poop got on the darn front fender. When I examined it, it was the PRIMER! and that nasty nasty noise made sense now. Big chunk of paint came off.

A near flawless paint job to boot!

LISTEN TO DAN!

Gene
ACES 3112/Team Chevelle Gold #62
Be big, be a 'builder'!
427L88 is offline  
post #36 of 37 (permalink) Old Feb 16th, 19, 12:48 PM
Tech Team
Richard
 
Join Date: Sep 2012
Location: No. Nevada
Posts: 524
Re: Front End Sag on Jackstands?

Quote:
Originally Posted by V1rotate View Post
I noticed that that the sag was very pronounced on my 70 while the engine was installed but the front clip was off, once the fenders were installed, it seemed better. Apparently, the fenders add some rigidity to the front structure.
Bingo!
It also flexes when jacking from the front and is the very reason that I will be adding a removable forward support structure to my '68 El Camino when I convert to a 'Glass tilt front.
Have to say I am disappointed that the frame is so flexible but not too surprised since it is really just a simple "Ladder" type.
A properly installed full cage can stiffen the chassis quite a bit but is not common for street cars.
Maybe I will look into what it would take to add some braces from the cab area to the frame for cars with steel fenders.
Always looking for a new product to develop, but I suspect few of us would see this as enough of a problem to buy them.

At these gas prices I want it 100+ octane, leaded, and my windshield washed!
Richard/SIA is offline  
post #37 of 37 (permalink) Old Feb 17th, 19, 10:07 PM
Lifetime Premium Member
Tom
 
Join Date: Apr 2002
Location: RI
Posts: 1,195
I remember the first time I jacked up the front end and placed the jack stands behind the front wheels. After changing the oil I reached in the window to start the car, and it made a hell of a racket. The frame sagged enough that the fan took out the top of my radiator shroud. Broke a big chunk out of it. After that I always kept the jack under pressure if I had to start the car jacked up. I still used the stands, just took some of the weight off them


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

396/Turbo400/3000rpm stall converter

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

396/Turbo 400/4:10 Posi/Frame Off Restoration

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

396/4 spd/3:31 12 bolt posi
Black 1970/LS5 454/4 spd/ 3:31 Posi

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
tireburner396 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
70 new front end kit? High perf - pro tour 70 nialator Brakes, Suspension & Steering 11 Nov 17th, 15 9:16 PM
71 with 69 front end? antoniov1 Chevelle Tech 9 Aug 14th, 15 4:53 PM
NVH in rebuilt front end JPS Brakes, Suspension & Steering 9 Jun 4th, 15 4:32 PM
high pitched sqeak in the front end beavliveson Brakes, Suspension & Steering 18 Sep 8th, 14 7:07 AM
front end height BigTime_ Brakes, Suspension & Steering 2 Dec 18th, 12 11:21 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome