speedo gear

[Stika Pimp]

just thought I would try here before hitting up the dealer

I need one for a 4.10 with a 91 automatic trans ( I think its the black 23 tooth)

hit me up if you have one
Thanks
586-709-8873

 

[nuttsgt]

There's a black one in the car I'm parting out. I'm not sure of the tooth count though.

 

[93-bucket]

Get with jim (hangemhigh) he is da man!

 

[mystic858]

I have an extra 1, I got it from the ford performance place on Groesbeck (cant think of the name right now). I think they get $28 for them now...if you want the new 1 I have it's yours for $10.
thanks
586-610-3434

 

[hangemhigh]

the most teeth on an oem gear is 21. red gear. part # C4OZ-17271-A. 5-6$. we stock a 23th a/m gear for $15. the aod has the "drive gear" machined into the output shaft, so there's no changing that. check the gear (teeth) you are now using. figure out how far you're off, and figure 5-6 mph per tooth added. i'd say the 23th is probably what you'll need. there's a formula somewhere, but i'm not that scientific....:cheers:

 

[Stika Pimp]

I found this on the search, this is where I got my info from. Put I will pull mine and see. My speedo is off a ton. at 45 it is around 90

http://www.steeda.com/products/speedometer_recalibration_gears.php

Ford Dealer has the gears....


375-C0DZ-17271-A
Manual 7-Tooth 2.73 Ratio / Maroon 16 Speedo Gear $9.95
375-C0DD-17271-B
Manual 7-Tooth 3.08 Ratio / Yellow 18 Speedo Gear $9.95
375-C0DZ-17271-B
Manual 7-Tooth 3.27 Ratio / Pink 19 Speedo Gear $9.95
375-C1DZ-17271-A
Manual 7-Tooth 3.55 Ratio / Black 20 Speedo Gear $9.95
375-C4OZ-17271-A
Manual 7-Tooth 3.73 Ratio / Red 21 Speedo Gear $9.95
392-STE-17271-D
Manual 7-Tooth 4.10 Ratio / White 23 Speedo Gear $15.95
375-C0DD-17271-B
Manual 8-Tooth 2.73 Ratio / Yellow 18 Speedo Gear $9.95
375-C1DZ-17271-A
Manual 8-Tooth 3.08 Ratio / Black 20 Speedo Gear $9.95
375-C4OZ-17271-A
Manual 8-Tooth 3.27 Ratio / Red 21 Speedo Gear $9.95
392-STE-17271-D
Manual 8-Tooth 3.55 Ratio / White 23 Speedo Gear $15.95
392-STE-17271-D
Manual 8-Tooth 3.73 Ratio / White 23 Speedo Gear $15.95
392-STE-17271-D
Manual 8-Tooth 4.10 Ratio / White 23 Speedo Gear $15.95
375-D0AZ-17271-A
Automatic 7-Tooth 2.73 Ratio / Blue 16 Speedo Gear $9.95
375-C7AZ-17271-B
Automatic 7-Tooth 3.08 Ratio / Gray 18 Speedo Gear $9.95
375-C7VY-17271-A
Automatic 7-Tooth 3.27 Ratio / Tan 19 Speedo Gear $9.95
375-C8SZ-17271-B
Automatic 7-Tooth 3.55 Ratio / Orange 20 Speedo Gear $9.95
375-D0OZ-17271-B
Automatic 7-Tooth 3.73 Ratio / Purple 21 Speedo Gear $9.95
392-STE-17271-J
Automatic 7-Tooth 4.10 Ratio / Black 23 Speedo Gear $15.95
375-C7AZ-17271-B
Automatic 8-Tooth 2.73 Ratio / Gray 18 Speedo Gear $9.95
375-C8SZ-17271-B
Automatic 8-Tooth 3.08 Ratio / Orange 20 Speedo Gear $9.95
375-D0OZ-17271-B
Automatic 8-Tooth 3.27 Ratio / Purple 21 Speedo Gear $9.95
392-STE-17271-J
Automatic 8-Tooth 3.55 Ratio / Black 23 Speedo Gear $15.95
392-STE-17271-J
Automatic 8-Tooth 3.73 Ratio / Black 23 Speedo Gear $15.95
392-STE-17271-J
Automatic 8-Tooth 4.10 Ratio / Black 23 Speedo Gear $15.95




Product Details
Once you change the gears in your differential, you need a new speedometer gear to recalibrate your speedometer. They're inexpensive, and only take a few minutes to change.

These Recalibration Gears fit 1979-1998 Mustangs. Please check our Hot New Product Section for information on 1999 and 2002 Mustangs.

Instructions: Note transmission type, model and resulting drive gear. Cross reference with your rear-end gear ratio to find the correct "recalibration" gear for your application.

Manual Transmissions with 7 Tooth Drive Gear

* 1983-1989 T-5 OEM
* Pre 1993 T-5 Aftermarket
* 1996-1998 Cobra T-45 OEM
* All Tremec Transmissions

Manual Transmissions with 8 Tooth Drive Gear

* 1990-1995 T-5 OEM
* 1996-1998 T-45 OEM Except Cobra

Automatic Transmissions with 7 Tooth Drive Gear

* 1983-1989 Automatic Transmissions

Automatic Transmissions with 8 Tooth Drive Gear

* 1990-1998 Automatic Transmissions

 

[black88coupe]

I've got a black one that you can have if you feel like driving to Wyandotte to get it. 734-558-0938 Mitch

 

[hangemhigh]

i've seen a reducer used to cal' it correctly. still need to see what you've got. if it's 16-17 then the 23 should get you a ton closer....

 

[91Notch]

just thought I would try here before hitting up the dealer

I need one for a 4.10 with a 91 automatic trans ( I think its the black 23 tooth)

hit me up if you have one
Thanks
586-709-8873

I'm going to have the same problem, let me know what you end up doing.

Thanks

 

[$uperstang]

I used the 23 tooth black one as well and it is much closer now, only like 5mph off. It will never be perfect on the AOD with the 4.10.