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

Speedo gear question

  • Thread starter Thread starter 86T-Top
  • Start date Start date Apr 12, 2004

86T-Top

Founding Member
Jun 29, 2001
553
0
17
Dublin, PA
Apr 12, 2004
#1
  • Apr 12, 2004
  • #1
I just got my 3.73 gears installed, and I am trying to figure out if I put the right speedo gear in. The guy at the speed shop sold me a red ford gear, but it seems to be a little off. Now I am using a chart to check if I put the proper gear in, but the spread sheet says that red is a 21 teeth and black is 20 teeth. I just did the install this weekend and when I counted the teeth on the red gear I thought I counted 20. Can anyone confirm that red has 20 teeth. Or did I count wrong.

Also, when I rebuilt my t-5 I used different year parts in it. I have an 89 so the chart says I should have a 7 teeth drive gear, but I am not sure if that is what I have. I do remember that the drive gear was yellow. Does anyone know what color the drive gear is for 7 teeth gear? They changed the drive gear in 90 to an 8 teeth drive gear, does anyone know that color, or did the color stay the same between the years?

Thanks,

Mario
 

squeeeg

Founding Member
Jul 4, 2000
1,905
0
0
Michigan
Apr 12, 2004
#2
  • Apr 12, 2004
  • #2
i think you have it right if i understand you. If you have a 7 tooth drive gear(which 89 t5's have) you do need the red 21 tooth gear.
 

Asha'man

Founding Member
Feb 5, 2002
1,909
0
0
Denver
Apr 12, 2004
#3
  • Apr 12, 2004
  • #3
www.hanlonmotorsports.com Look around there a little and you'll figure it out. I don't remember off the top of my head, but I think the 6-tooth drive gear is black and the 7-tooth is yellow. Use the speedo gear calculator near the bottom left of the main page and it'll tell you combos for both.

Ash
 
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
217
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
700
Fox 5.0 Mustang Tech Aug 15, 2024
AeroCoupe
S
Engine Stalls when downshifting/coasting
  • Scott_S
  • Nov 5, 2025
  • Fox 5.0 Mustang Tech
Replies
11
Views
644
Fox 5.0 Mustang Tech Nov 6, 2025
Mustang5L5
T5 5th gear 89 gt
  • mac_55
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
165
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 20, 2026
Mustang5L5
S
  • Locked
Drivetrain Adjustable clutch cable questions
  • Scott_S
  • Oct 31, 2025
  • Fox 5.0 Mustang Tech
Replies
6
Views
380
Fox 5.0 Mustang Tech Oct 31, 2025
Noobz347
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?