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

Why are the gas tanks offset to one side?

  • Thread starter Thread starter 68converted
  • Start date Start date Aug 5, 2007

68converted

Member
Nov 19, 2003
772
0
16
Colorado
Aug 5, 2007
#1
  • Aug 5, 2007
  • #1
Can anyone tell me why the gas tanks are offset? Meaning one side is closer to the leaf springs... stupid question but I was just thinking outloud as I am fabing up the exhaust. Is it because of balance with the spare to one side???
 
A

ARTTII

New Member
Jan 13, 2004
272
2
0
Detroit, MI
Aug 5, 2007
#2
  • Aug 5, 2007
  • #2
I think it was designed that way to make it hard to run the LH exhaust pipe in 2.5"+ sizes... Guess I don't know either, does seem odd though...
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Aug 5, 2007
#3
  • Aug 5, 2007
  • #3
probably a production tolerance stack.
 

dennis112

15 Year Member
May 15, 2005
1,561
36
79
Amish Wonderland of Central PA.
Aug 6, 2007
#4
  • Aug 6, 2007
  • #4
Gives more footing to mount the spare tire flat. . . . . .
 

68converted

Member
Nov 19, 2003
772
0
16
Colorado
Aug 6, 2007
#5
  • Aug 6, 2007
  • #5
Well dang, it sure does make exiting a 3" chrome tail pipe impossible with a rattle. I guess I will just keep the 2.5" all the way out.
 

mustangmike6996

5 Year Member
Nov 10, 2005
483
6
29
clinton twp, MI
Aug 6, 2007
#6
  • Aug 6, 2007
  • #6
wieght distribution for traction/take off would be the most likely principal of that design in my opinion
 
H

Helmantel

New Member
Aug 9, 2006
206
1
0
Aug 7, 2007
#7
  • Aug 7, 2007
  • #7
If that's the case they moved it to the wrong side. Contrary to popular believe, optimum performance/traction/handling was not the nr 1 priority in the Mustang's design

I think the spare tire mounting space is a more likely reason.
 
W

Westmus

Member
Feb 6, 2004
32
0
6
Denmark
Aug 7, 2007
#8
  • Aug 7, 2007
  • #8
Maybe vi have to look at the original Mustang....the early Falcons! They were all 6cyl with single exhaust! The engineers was not thinking that dual exhaust would be an option later, but moved the tank away from the hot exhaust pipe. Maybe that's the reason?
 

68converted

Member
Nov 19, 2003
772
0
16
Colorado
Aug 7, 2007
#9
  • Aug 7, 2007
  • #9
I am seriously thinking about cuting out the bottom of the trunk and recentering it??? At this point, who cares with this "Frankenstang".
 

NasaGT

Founding Member
Sep 19, 2002
1,993
2
49
Virginia
Aug 8, 2007
#10
  • Aug 8, 2007
  • #10
Westmus said:
Maybe vi have to look at the original Mustang....the early Falcons! They were all 6cyl with single exhaust! The engineers was not thinking that dual exhaust would be an option later, but moved the tank away from the hot exhaust pipe. Maybe that's the reason?
Click to expand...

I think this is the most plausible answer so far.
 

68converted

Member
Nov 19, 2003
772
0
16
Colorado
Aug 12, 2007
#11
  • Aug 12, 2007
  • #11
I agree. Although I am really wanting to move the tank over the 1" to center it. Time/common sense vs. PITA factor. I am just leaving it alone and going with 2.5" tails. Thanks for the help with my really stupid question.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Aug 12, 2007
#12
  • Aug 12, 2007
  • #12
Exhaust clearance, that's the one and only reason. Most had single exhaust, eiting on the right side.
 
You must log in or register to reply here.

Similar threads

identifying smog/fuel part on 1998 GT
  • dochawk
  • Jun 18, 2026
  • SN95 4.6L Mustang Tech
Replies
9
Views
143
SN95 4.6L Mustang Tech Jun 30, 2026
Noobz347
2
Electrical mayhem
  • 2000ElectricGreen
  • Mar 13, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
261
1996 - 2004 SN95 Mustang -General/Talk- Mar 24, 2026
2000ElectricGreen
2
T
1979 foxbody in tank fuel pump
  • Tgm624
  • Sep 26, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
15
Views
577
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 28, 2025
AeroCoupe
L
95 gt engine vibration
  • lenzgt
  • May 11, 2026
  • 1994 - 1995 Specific Tech
Replies
6
Views
192
1994 - 1995 Specific Tech May 26, 2026
lenzgt
L
P
Air Fuel ratio bung location.
  • Praetorious
  • Feb 7, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
39
Views
916
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 11, 2026
Noobz347
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?