• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

MY 67 FB IS A LEANER!

  • Thread starter Thread starter Robdogg67
  • Start date Start date May 19, 2004
R

Robdogg67

New Member
Dec 23, 2002
148
0
0
Seattle/Tacoma, WA
May 19, 2004
#1
  • May 19, 2004
  • #1
Recently replaced the whole rear suspension on the 67 FB. Prior to touching the car we measured the fenders to ground distance so we knew the as is and found that the car sags on the drivers side about 3/4". After changing out the rear springs the car still sags 3/4" on the whole drivers side. I figured that maybe the front coils were shot especially from drivers getting in over that last 35+. I then measured the distance from the spring perch/shock base to the top of the shock tower expecting to see a significant difference but they were within 1/8" of each other. I just ordered new coils, insulators, perches, upper a-arms and shocks but I'm still not convinced that will solve the issue. Planning on maintaning the stock ride height.

My brand new tires rub on the drivers fender now, I'm bummed. I have the shelby drop already. The car does not appear to be damaged near the main spring or frame locations underside. I'm stumped. Would a front end alignment be the miracle cure? Any ideas?
 
J

jesserose17

New Member
Aug 21, 2003
219
0
0
Southern CA
May 19, 2004
#2
  • May 19, 2004
  • #2
I would try loosening the front & rear bolts of the rear leaf springs and bounce the body up & down, then tighten to specs.
 

302 coupe

Founding Member
Mar 2, 2000
1,952
3
36
Macon, Ga.
May 19, 2004
#3
  • May 19, 2004
  • #3
you don't have a spare or tool box or anything in the trunk on that side do you? If nothing else, move the battery to the pass. side trunk, that ought to fix most of it.
 
S

Snail50

Founding Member
Mar 24, 2001
787
0
0
Miami
May 19, 2004
#4
  • May 19, 2004
  • #4
jesserose17 said:
I would try loosening the front & rear bolts of the rear leaf springs and bounce the body up & down, then tighten to specs.
Click to expand...


when I redid my whole suspension, the rear wasn't level. I tried the above trick (probably recommended by jesse), and it worked. I loosened mine up and drove around the block, though. good luck.
 

mdjay

Premium Sponsor
Dec 9, 2003
896
0
16
Las Vegas, NV
May 19, 2004
#5
  • May 19, 2004
  • #5
Although I hope this isn't the case, it's also possible it's twisted if no damage is visually evident... Good luck I hope the other's suggestions fix the problem...
 
R

Robdogg67

New Member
Dec 23, 2002
148
0
0
Seattle/Tacoma, WA
May 19, 2004
#6
  • May 19, 2004
  • #6
I did loosen, drive and retighten a couple weeks back (per recommendations) but it made no difference. Relocating the weight distribution also made no significant difference either. The whole side is off the same amount front to back. By lifting up the front left fender via. muscle I can see the left rear come up almost the same amount. But when I lift up the rear fender, the front does not come up as much which leads me to believe that the issue is in the front end somewhere. Maybe something is twisted? I guess I'll replace the coils, etc.., get the front end aligned and then see where I'm at.

I can probably shim the top coil insulator (1" poly)with a poly stock insulator which will raise it just over 1/4". Then the difference would be negligable. I don't see what it would hurt since it would be under spring load and nested up in the top shock tower, no one would know the difference. Anyone ever tried that before? Bring on more ideas and lessons learned. I hope this dilemma isn't unique to me but with my luck, I wouldn't doubt it either. Thanks for your reply's.
 
R

Robdogg67

New Member
Dec 23, 2002
148
0
0
Seattle/Tacoma, WA
May 19, 2004
#7
  • May 19, 2004
  • #7
bump...
 
R

Robdogg67

New Member
Dec 23, 2002
148
0
0
Seattle/Tacoma, WA
May 19, 2004
#8
  • May 19, 2004
  • #8
bump
 
R

Ronstang

New Member
Apr 4, 2004
1,294
0
0
Houston Texas
May 19, 2004
#9
  • May 19, 2004
  • #9
Take your car to the frame shop. I suggest all people with 40 year old cars who do not know their pasts do so. It is not expensinve. I had mine tweaked for $75. They told me mine was so easy they only charged me setup time. My friends 67 had some issues and they did quite a bit of work to his and it only set him back $200. This is cheap considering what some here spend on trinkets for their cars.
 
S

Snail50

Founding Member
Mar 24, 2001
787
0
0
Miami
May 20, 2004
#10
  • May 20, 2004
  • #10
make sure your front coils are sitting correctly on the perch. if the sag is the same as before you touched the car, it's likely a frame issue.
 
You must log in or register to reply here.

Similar threads

Fox Ideas for Theft Deterrence in Storage
  • Clutchfork
  • Nov 6, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
38
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 1, 2025
91AOD5.0LX
J
Severe shaking/vibrations in steering wheel
  • jacket999
  • May 20, 2025
  • SN95 V6 Mustang Tech
Replies
8
Views
788
SN95 V6 Mustang Tech Jun 1, 2025
NtheGAME
N
A definitive answer to the question of how much height Energy Suspension isolators add
  • 2000xp8
  • May 20, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
262
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 20, 2025
2000xp8
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
748
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
R
1994 GT 5.0L crank no start
  • Red1994MustangGT
  • Apr 15, 2025
  • 1994 - 1995 Specific Tech
  • 2
Replies
23
Views
1K
1994 - 1995 Specific Tech Aug 19, 2025
Kurt_MO
K
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?