Speedometer Recalibration Gear 83-93

Obsol3te · 08-15-2004, 01:51 AM

For those of you who are always asking what speedometer gear you need for your new rear end gears.
Here's a list of the following gears and speedo gear colors Compliments of Roundman

1983-89 manual 5 spd speedo gears
3.27-19 tooth-pink
3.55-20 tooth-black
3.73-21 tooth-red
4.10-23 tooth-white

1990-1993 manual 5 speed speedo gears
3.08-20 tooth-black
3.27-21 tooth-red
3.55-23 tooth-white

1984-1989 automatic AOD speedo gear
3.27-19 tooth
3.55-20 tooth
3.73-21 tooth
4.10-23 tooth

1990-1993 automatic AOD speedo gear
2.73-19 tooth
3.08-20 tooth
3.27-21 tooth
3.55-23 tooth

Casper98GT · 08-15-2004, 02:57 AM

Thanks Kyle, they have one for all years on steeda.com. lol

Obsol3te · 08-15-2004, 03:03 AM

Yeah, but people always ask so I thought this would be easier.

NegadivOne · 08-15-2004, 03:30 AM

yeah this will definately help out a lot of people. not everyone knows what websites to go to to find out.

furrelkt · 08-17-2004, 11:13 AM

Hey Guys i had this saved since i been thinking of the same questions in my research..

http://steeda.com/store/-catalog/speedometer.htm

Keri

Stinger · 08-18-2004, 12:00 AM

Hey how about 3.73 for a 5 speed /1991?LOL

Fishhawk · 09-02-2004, 10:58 AM

Unfortunatly theses number aren't always that accurate. I installed 3.55 gears on my 85 GT with 5-speed and 225/60R15 tires. All the web sites called for the 20 tooth gear for my car. On the highway I felt I was moving slower then my speedometer was telling me. I had a local cop hit me with his radar and my suspisions were corret. I was on average, 5 MPH slower. I put in a 21 tooth and now my speedo it accurate.

Demon_Mustang · 09-24-2004, 03:36 AM

Ok, I am about to swap my AOD for a Cobra-Spec T-5 transmission off a 1993 Cobra. That means I have the stock auto rear-end of 3.27:1 diff i think, but the transmission is the Cobra-Spec T-5, not the standard AOD/3.27 combination. What would I need to buy for that?

Thanks.

BlueDemon · 10-02-2004, 03:08 AM

Thank-you for posting that Obsol3te, I just recently purchased 3.55 gears for my 88 LX 5.0. and called several local Ford dealers about what speedo gear I would need to put in. They couldn't tell me because they said their books didn't go back that far. That was a great idea that you posted that!! By the way do you or anyone else know what gears were standard in that year? Does it matter that it was a patrol car at one time? Thankyou ahead of time for any help you can give me!!!

import slayer · 12-03-2004, 01:11 AM

I found this site that might help too:

http://www.buicks.net/shop/speedo.html