right rear corner of car sags 1" - 460 Ford Forum
General Tech A place to discuss general tech regarding chassis, transmission, tires, suspension, non-460, etc

User Tag List

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 11 (permalink) Old 04-29-2013, 09:55 PM Thread Starter
Senior Member
 
Dakota Boy's Avatar
 
Join Date: Jul 2009
Location: Racine, WI
Posts: 546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
right rear corner of car sags 1"

Car sagged to the right with the old, original leafs.

New leaf springs installed. Car sagged less, but still...
So I flipped them around to rule out a potential issue with one of the springs.
It made no difference; car still sags at the right rear corner.

Front of car sits pretty level (as measured at the top lip of each fenderwell to the floor; difference is 1/4"; with the right side being 1/4" lower).

I tried one of those helper springs on the right rear, but that didnt really do much.

Should I add a leaf to the right side?
This is really wierd.
Only a few people have noticed this issue, but it bugs the heck out of me.

1958 T-bird
Dakota Boy is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 04-29-2013, 10:09 PM
Senior Member
 
Dman64's Avatar
 
Join Date: May 2010
Location: Canada
Posts: 822
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
 
Is there a body in the trunk or a bag of money?lol is the car on a frame, maybe a body mount?

D


Sent from AutoGuide.com App

1964 F100 466 zero decked fuelie 7cc dish pistons, with RHP 2.11 1.65 budget D3 heads, Voodoo cam 219/227, rpm intake, Holley Terminator EFI, MSD Ignition, MSD FORD TFI Distrbutor, 4R70W Trans with Baumann Re-cal kit, US Shift electronic Trans controller with B&M Megashifter, 2500 Dirty Dog Convertor, 3.50 gears with detroit locker.

http://www.flickr.com/photos/36499599@N04/

http://www.youtube.com/watch?v=rbl-v...3&feature=plcp
Dman64 is offline  
post #3 of 11 (permalink) Old 04-29-2013, 11:26 PM
Senior Member
 
Join Date: Jan 2006
Location: So.Cal
Posts: 2,426
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Either a missing (rotted) body mount, or perhaps the frame is bent slightly, or something else in the body structure is bent.

As the world turns...I get more dizzy!
TorinoStyle2 is offline  
post #4 of 11 (permalink) Old 04-30-2013, 06:36 AM
Senior Member
 
Gydyup's Avatar
 
Join Date: May 2010
Location: Chesapeake Va
Posts: 754
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
 
I would put it on a frame machine and have it checked.

What about spring bushings, they are in there arent they
Gydyup is offline  
post #5 of 11 (permalink) Old 04-30-2013, 06:37 AM Thread Starter
Senior Member
 
Dakota Boy's Avatar
 
Join Date: Jul 2009
Location: Racine, WI
Posts: 546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Battery is in the right rear corner of the trunk.

'58 Tbirds were unibody cars (no body mounts exist).

There is evidence of a right front fender-bender at some point in this car's past.

1958 T-bird
Dakota Boy is offline  
post #6 of 11 (permalink) Old 04-30-2013, 10:13 AM
Senior Member
 
Gydyup's Avatar
 
Join Date: May 2010
Location: Chesapeake Va
Posts: 754
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
 
May not be in the rear, maybe off in front, causing the the corresponding droop in the rear.
Gydyup is offline  
post #7 of 11 (permalink) Old 04-30-2013, 11:34 AM
Senior Member
 
White Lightning's Avatar
 
Join Date: Feb 2010
Posts: 5,629
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 43 Post(s)
 
It's been my experience that older, used body's, especially the unibody set ups that have had some amount of 'non stock' power fed through them will be bent. Either from actual chassis/body twist or from suspension components being not what they 'should ' be. If you're running leafs in the rear, my suggested fix would be to have the leaves re-arched or add to them as needed to reach the desired ride height. I personally try to stay away from lift blocks (where they'd work, re: spring over axle set ups) because of added leverage to the spring pack and that leads to an asemetrical spring loading scenario which leads to chasing handling gremelins. The battery in the right rear will definately contribute to a sag on that corner. JMHO.
Rob

Rob Hawes-Anchorage Rod Works-Anchorage, Alaska

Last edited by White Lightning; 04-30-2013 at 11:38 AM.
White Lightning is offline  
post #8 of 11 (permalink) Old 04-30-2013, 11:56 AM
Senior Member
 
D Pope's Avatar
 
Join Date: Aug 2010
Location: Sask Canada
Posts: 670
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Put the battery on the other side and see what happens
What's it sit like when you're in the drivers seat?

1949 Mercury coupe
Nosed, Decked, Frenched
58 T-Bird interior
472 w/toploader 4 speed OD
Performer RPM w/Holley 3 barrel
Isky 304 degree solid cam
Narrowed 3.25 9.5 inch with Detroit Locker
D Pope is offline  
post #9 of 11 (permalink) Old 04-30-2013, 01:01 PM
Senior Member
 
Join Date: Dec 2010
Location: Gibsonburg, Ohio
Posts: 1,431
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by Gydyup View Post
May not be in the rear, maybe off in front, causing the the corresponding droop in the rear.
Very true! He should also consider checking the distance from the "snubbers" or "jounce kits" to the corresponding metal contact surface an all 4 corners to help determine if the problem lies in the suspension or the body mounts/unibody. This may not work in the rear if the spring rate is soft enough that unibody twist(if any) may cause deflection in the springs. Measuring distances from wheelhouse arches to the ground CANNOT be trusted for "for sure" test results, although it can get you in the ballpark.

All of these checks should be done on an alignment rack in the presence of a well-trained technician at which time he should be able to easily determine the root of the problem. I have seen SO MANY people chase their tails on problems like this when it ended up being wasted front end parts, improper tire pressure, bad alignment(which can cause this by itself), etc. Also, "Real" alignment technicians are VERY VERY hard to find these days! Most guys just put measurements "in the green" not knowing why or the ramifications of such actions.

Ask me if needed, I averaged 8-10 alignments a day while a technician at Firestone and have been in the presence of guys like this.

Last edited by 429TORQ; 04-30-2013 at 01:04 PM.
429TORQ is offline  
post #10 of 11 (permalink) Old 04-30-2013, 08:06 PM Thread Starter
Senior Member
 
Dakota Boy's Avatar
 
Join Date: Jul 2009
Location: Racine, WI
Posts: 546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
I know the answer is out there; I just need to find the right guy (or shop).

1958 T-bird
Dakota Boy is offline  
post #11 of 11 (permalink) Old 05-08-2013, 09:47 PM Thread Starter
Senior Member
 
Dakota Boy's Avatar
 
Join Date: Jul 2009
Location: Racine, WI
Posts: 546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Here's proof that a blind dog CAN find a bone once in a while:

I installed a leaf spring "helper" on the passenger-side leafs. Then I clipped one of those hard nylon coil spring stiffeners onto the front passenger-side coil. This helped drop the rear driver's side just a bit.

And I'll be danged if the car now doesnt sit just about as good as it ever has.

1958 T-bird
Dakota Boy is offline  
Sponsored Links
Advertisement
 
Reply
Gear in this thread - Powered by O'Reilly Auto Parts

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 460 Ford Forum 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 for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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



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