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

Anyone know where I can find 140mph speedo gear?

  • Thread starter Thread starter malik641
  • Start date Start date Jun 1, 2004

malik641

New Member
Nov 24, 2003
53
0
0
41
South Florida
Jun 1, 2004
#1
  • Jun 1, 2004
  • #1
I bought a 140mph white face gauge kit and my stock speedo goes to 85mph. I heard I have to change the gear that connects to the transmission (i have an 87 5.0 with AOD). Does anyone know how many teeth are on the 140mhp speedometer gear? And where I can find it (besides a junkyard)?
 
J

Js5ohLX

Member
Apr 5, 2004
287
0
16
Ohio
Jun 1, 2004
#2
  • Jun 1, 2004
  • #2
I don't think you can change the gear to get it even close. I'm pretty sure you'll need the actuall 140 speedo, someone correct me if I'm wrong.
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
blackfox.ath.cx
Jun 1, 2004
#3
  • Jun 1, 2004
  • #3
You need the actual gauge. The gears are just to compansate for different rear end gear ratios...

You need to get a cluster, or just the speedo from an '89 GT. Thats the only year you can get it from because in 88 it had a 85mph, and in 90 they went with airbags and changed the cluster size...look on ebay but beware it's a hot item
 

malik641

New Member
Nov 24, 2003
53
0
0
41
South Florida
Jun 2, 2004
#4
  • Jun 2, 2004
  • #4
Thanks, off to the junkyard
 
You must log in or register to reply here.

Similar threads

T
Newbie looking for some info on speedo gears
  • TDM389
  • Nov 15, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
247
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 16, 2025
TDM389
T
Drivetrain Speedo gear ate itself
  • keel
  • Aug 15, 2024
  • Fox 5.0 Mustang Tech
Replies
7
Views
725
Fox 5.0 Mustang Tech Aug 15, 2024
AeroCoupe
E
Drivetrain Odometer quit working
  • El Dee
  • Feb 6, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
261
Fox 5.0 Mustang Tech Feb 7, 2025
85GTStangGuy
Does anyone know where to buy this
  • PvolkStang
  • Jul 19, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
295
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 20, 2025
manicmechanic007
S
Fox '87 GT can't get to stay running
  • spilly
  • Mar 29, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
27
Views
837
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 20, 2026
spilly
S
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?