• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Suspension Alignment specs

  • Thread starter Thread starter 7991LXnSHO
  • Start date Start date Jul 9, 2021

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#1
  • Jul 9, 2021
  • #1
Please post for me what stock and spirited driving front alignment specs should be for a 91 LX, 5.0, factory pony 5 spoke rims, B springs, BBK C/C plates.
I have had it with the closest tire place. They have a fancy machine and poor operators, and have made three vehicles pull or feel squirrely that did not before they checked and “fixed” the alignments. Multiple trips back change the problem changed the direction of the pulls, but did not fix it or the crooked steering wheels. So before I go elsewhere, I would like to be armed with the right numbers.
thanks!
@Warhorse Racing
 

HemiRick

I'd be looking at jacking under the house
Jun 28, 2020
723
272
73
Memphis TN
Jul 9, 2021
#2
  • Jul 9, 2021
  • #2
toe out 1/16" caster all the way back, you want as much as possible, camber -1
 
Reactions: 7991LXnSHO

90sickfox

Wasn't a pretty sight...and I've got big hands
SN Certified Technician
Mar 2, 2015
6,945
5,816
213
Jul 9, 2021
#3
  • Jul 9, 2021
  • #3
You need to find a different shop.
 
Reactions: HemiRick

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#4
  • Jul 9, 2021
  • #4
90sickfox said:
You need to find a different shop.
Click to expand...
That’s what the plan is.
 
Reactions: 90sickfox

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,143
17,839
224
Massachusetts
Jul 9, 2021
#5
  • Jul 9, 2021
  • #5
I go by what MM recommends in their caster/camber plate instructions.

SInce i DIY my own alignments, i tend to settle on MAX caster, 1/16" toe in, 0.5-1 degree camber



 
Reactions: Shakerhood and 7991LXnSHO

Warhorse Racing

5 Year Member
Feb 10, 2019
356
203
63
United States
Jul 9, 2021
#6
  • Jul 9, 2021
  • #6
There's a lot of good info here so far. When you start moving outside the factory alignment settings it's a good idea to find a shop that has experience doing "competition" alignments. Getting the right alignment is a bit of an art, so it takes a skilled tech.

A competition alignment can also have some issues under "normal" driving. My autocross cars tend to wander on roads with a crown. You want as much caster as you can get. If you are going to pay for another alignment, I would consider installing offset A-arm bushings (there are Poly and Delrin versions available). They will move the front wheels forward and allow for more caster. The Global West Del-A-Lum bushings I installed on my Fox made a noticeable difference in how the car felt on course. They are relatively cheap, but they do require a press to install.

The amount of negative camber depends on your willingness to wear out your tires faster than normal. For a daily driver solid rear axle Fox Body, I would say that -2 degrees is probably as far as most people would go. And you would want to rotate your tires more often. If you plan on racing the car, you would want more.

My autocross Fox is camber-limited due to the SN95 spindles, so I run -1.3 degrees. I'm not willing to cut the car up to get more, but ideally it would be set to -2.5 degrees. That car handles pretty well for not having a lot of negative camber.

All my autocross cars have 1/16" toe out.

Keep in mind, I don't daily drive my cars, and my tires only last 3,000 miles (not because of the alignment).

For a street car, I would personally go with max caster (with offset bushings), -1.5 degrees of camber, and 1/16" toe out.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#7
  • Jul 9, 2021
  • #7
Toe out? Is that for quicker turn in? When I learned about alinement, toe in was make sure your tires were still straight with road forces on pre rack and pinion vehicles.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#8
  • Jul 9, 2021
  • #8
@Warhorse Racing so besides toe out,
“My autocross Fox is camber-limited due to the SN95 spindles, so I run -1.3 degrees. I'm not willing to cut the car up to get more, but ideally it would be set to -2.5 degrees. That car handles pretty well for not having a lot of negative camber.”

I do not have the ‘95-6 spindles or bigger brakes in at this point. If I do, is there more to do besides loosening the strut to spindle bolts, moving them (in?) and tightening them up to get max camber?
 

Warhorse Racing

5 Year Member
Feb 10, 2019
356
203
63
United States
Jul 9, 2021
#9
  • Jul 9, 2021
  • #9
7991LXnSHO said:
@Warhorse Racing so besides toe out,
“My autocross Fox is camber-limited due to the SN95 spindles, so I run -1.3 degrees. I'm not willing to cut the car up to get more, but ideally it would be set to -2.5 degrees. That car handles pretty well for not having a lot of negative camber.”

I do not have the ‘95-6 spindles or bigger brakes in at this point. If I do, is there more to do besides loosening the strut to spindle bolts, moving them (in?) and tightening them up to get max camber?
Click to expand...

There are a few things you can do to compensate for the camber issue created by using 94-04 spindles. Keep in mind that there are some differences between 94-95 and 96-04 spindles. In order to get more negative camber you can:

Elongate one mounting hole in the strut so that the top of the spindle can move inboard. You can drill new holes in the strut tower to move the CC plates inboard. Or you can use longer SN95 A-arms.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#10
  • Jul 9, 2021
  • #10
Warhorse Racing said:
There are a few things you can do to compensate for the camber issue created by using 94-04 spindles. Keep in mind that there are some differences between 94-95 and 96-04 spindles. In order to get more negative camber you can:

Elongate one mounting hole in the strut so that the top of the spindle can move inboard. You can drill new holes in the strut tower to move the CC plates inboard. Or you can use longer SN95 A-arms.
Click to expand...
Edit, I have 94-5 spindles I plan on using if I upgrade brakes. I have 96 spindles I plan on reselling. Both pair hurt to stub my toes on in the dark on the way to the garage fridge.
 

Warhorse Racing

5 Year Member
Feb 10, 2019
356
203
63
United States
Jul 9, 2021
#11
  • Jul 9, 2021
  • #11
7991LXnSHO said:
Edit, I have 94-5 spindles I plan on using if I upgrade brakes. I have 96 spindles I plan on reselling. Both pair hurt to stub my toes on in the dark on the way to the garage fridge.
Click to expand...
Planning for the spindle swap is important. MM has a really good resource: https://www.maximummotorsports.com/tech_front_susp_7993to9604_spindle.aspx

As you'll see in that guide, bump steer and camber issues come into play with the different spindles. I have 96-04 spindles on my Fox and I've never had a bump steer issue, but it's not lowered very much.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 9, 2021
#12
  • Jul 9, 2021
  • #12
I think (it might even have been before I joined here) I got the 96 spindles from someone who did not know the difference, and I saw the missing Z in the arm too late to send them back.
So anyway, why the toe out? I am thinking I want to have for toe in for stable highway driving, right or wrong?
 

Warhorse Racing

5 Year Member
Feb 10, 2019
356
203
63
United States
Jul 9, 2021
#13
  • Jul 9, 2021
  • #13
7991LXnSHO said:
I think (it might even have been before I joined here) I got the 96 spindles from someone who did not know the difference, and I saw the missing Z in the arm too late to send them back.
So anyway, why the toe out? I am thinking I want to have for toe in for stable highway driving, right or wrong?
Click to expand...
Toe out helps with turn-in for performance driving. If your car will see more highway use, you might prefer zero toe or a little toe in.
 
Reactions: 7991LXnSHO

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,143
17,839
224
Massachusetts
Jul 9, 2021
#14
  • Jul 9, 2021
  • #14
You control arms will also play a little role in deciding your toe settings. If you are using stock style control arms with rubber bushings, you want toe-in as the action of driving foward and the compliant bushings will cause the front wheels to toe out slightly (or be nuetral). With aftermarket bushings (poly, delrin) that effect is less so a more nuetral setting can be used (for a street car). If racing, toe out will make an improvement in turn-in, but I’ve found it to make a street car darty over crappy roads.

so you need to make a decision based on your usage of the car and your parts components.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Jul 10, 2021
#15
  • Jul 10, 2021
  • #15
Mustang5L5 said:
You control arms will also play a little role in deciding your toe settings. If you are using stock style control arms with rubber bushings, you want toe-in as the action of driving foward and the compliant bushings will cause the front wheels to toe out slightly (or be nuetral). With aftermarket bushings (poly, delrin) that effect is less so a more nuetral setting can be used (for a street car). If racing, toe out will make an improvement in turn-in, but I’ve found it to make a street car darty over crappy roads.

so you need to make a decision based on your usage of the car and your parts components.
Click to expand...
Thanks for confirming that my knowledge was not out of date, and for providing the right specs for when I go to the shop. If they say they are going to align it to other specs, I will go to a different shop.
 
Last edited: Jul 11, 2021
Reactions: General karthief
You must log in or register to reply here.

Similar threads

3
Eight inches is enough for me...
  • 351MooseStang
  • Nov 27, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
5
Views
495
1974 - 1978 Mustang II Talk & Tech Mar 2, 2026
Bullitt347
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
  • mnky99
  • Sep 5, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
421
1996 - 2004 SN95 Mustang -General/Talk- Sep 5, 2025
mnky99
M
J
Engine No power after idle
  • JustinTilley86
  • Aug 10, 2024
  • Fox 5.0 Mustang Tech
  • 2
Replies
34
Views
2K
Fox 5.0 Mustang Tech Sep 23, 2024
General karthief
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
805
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
Place to Avoid: Jamison Auto Group in Gulfport, MS
  • D Durden
  • Oct 20, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • 2 3
Replies
45
Views
2K
1965 - 1973 Classic Mustangs -General/Talk- Feb 4, 2026
nickyb
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang 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?