HELP Please, Speedo Gear For AOD+411 Gears - Northern California Ford Owners

This is topic HELP Please, Speedo Gear For AOD+411 Gears in forum Tech Talk at Northern California Ford Owners .

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Posted by hidnn.o.s. (Member # 1219) on :

I just swapped a bad AOD for a good one. When I pulled out the gear that was new when the last AOD went in 3k miles ago the gears were chewed up. I know it's a white 23 tooth but my local Ford doesn't know their product well so I would like to make their job easier, SO I CAN GET MY GEAR and just give them a part number.

Any help on Ford's part number for a white 23 tooth gear?

Thanks everyone

Posted by JohnB (Member # 969) on :

From 5.0 Resto's website...

1990-93 Mustang Automatic AOD
2.73 19 Tooth LRS-17271E
3.08 20 Tooth LRS-17271F
3.27 21 Tooth LRS-17271G
3.55 23 Tooth LRS-17271J

Posted by Jmir018 (Member # 1414) on :

Don, there is not a speedo gear that will accurately fix your speedometer.. it think it will always be a little off. [patriot]

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by JohnB:
From 5.0 Resto's website...

1990-93 Mustang Automatic AOD
2.73 19 Tooth LRS-17271E
3.08 20 Tooth LRS-17271F
3.27 21 Tooth LRS-17271G
3.55 23 Tooth LRS-17271J

John, I had the drive gear swapped to an earlier model. My speedo was tested on the dyno 2 weeks ago and found to be DEAD ON [Big Grin]

I have the gear in hand, just need to replace it. Does Ford have them or do I have to go through 5.0?

BTW, ignore the call back sir, I fixed my "issue"

Posted by JohnB (Member # 969) on :

Nope, you can go directly through Ford for it.

Good thing, I JUST got the message...good help is hard to find!!

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by JohnB:
Nope, you can go directly through Ford for it.

Part number by chance? The parts debt I spoke with today had their heads up their asses and couldn't get me the one I need. All they would say is we have the white one that has 17 teeth. Then just pause........... I NEED ONE WITH 23 TEETH [Roll Eyes]

They were supposed to call me back when they located one because I was sick of being on hold for 15 minutes and never called....

Posted by blind (Member # 3052) on :

23 Tooth LRS-17271J

isn't the 17271J part of that the ford part #?

I also remember reading that some guys get a speedo gear from jeep/chrysler that is correct for the 4.10 gears, maybe its a 25 tooth?

but if the 23t was correct for you on the dyno then get that

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by blind:
23 Tooth LRS-17271J

isn't the 17271J part of that the ford part #?

I also remember reading that some guys get a speedo gear from jeep/chrysler that is correct for the 4.10 gears, maybe its a 25 tooth?

but if the 23t was correct for you on the dyno then get that

No, it's deffinitely the 23 tooth. I got that information from a link posted here when I had done the gear swap and know it's accurate after the dyno.

BUT, BINGO, you are right. I got the gear from my local Dodge dealership. I'll be stopping by there on my way home this morning.

Posted by Jmir018 (Member # 1414) on :

quote:
Originally posted by hidnn.o.s.:

quote:
Originally posted by blind:
23 Tooth LRS-17271J

isn't the 17271J part of that the ford part #?

I also remember reading that some guys get a speedo gear from jeep/chrysler that is correct for the 4.10 gears, maybe its a 25 tooth?

but if the 23t was correct for you on the dyno then get that
No, it's deffinitely the 23 tooth. I got that information from a link posted here when I had done the gear swap and know it's accurate after the dyno.

BUT, BINGO, you are right. I got the gear from my local Dodge dealership. I'll be stopping by there on my way home this morning.

can you get me one for my bday? [Wink]

Posted by hidnn.o.s. (Member # 1219) on :

you have a 5 speed

Posted by 03SHKER (Member # 1397) on :

We keep these here at Apex.
*Edit*
3.08 Gear Ratio / Yellow 18 Speedo Gear
3.27 Gear Ratio / Pink 19 Speedo Gear
3.55 Gear Ratio / Black 20 Speedo Gear
3.73 Gear Ratio / Red 21 Speedo Gear
4.10 Gear Ratio / White 23 Speedo Gear

[ December 08, 2005, 01:21 PM: Message edited by: 03SHKER ]

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by 03SHKER:
We keep these here at Apex.

thanks, rather than spending $40 on gas for a $5 part can you help me with a Ford part number?

Posted by 03SHKER (Member # 1397) on :

C'mon it'll be worth the drive. You gotta PM.

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by 03SHKER:
C'mon it'll be worth the drive. You gotta PM.

I have the same idiot from yesterday on the phone now. He is telling me that Ford does not make any gears with more than 21 teeth. Need to run to Chrysler or is this guy full of @#%#?

Thanks again for your time!

Posted by 03SHKER (Member # 1397) on :

No prob Don. Like I said, lemme know if there's anything else I can do.

Posted by 50DADDY (Member # 3076) on :

Ford doesnt make a 23 tooth gear,i just went through this.23 tooth is aftermarket and it wont help much.But try Commercial Speedometer in Sacramento,they have a 23 tooth speedo gear.

Posted by hidnn.o.s. (Member # 1219) on :

Dodge has them, I just need to find the part number again.

Posted by hidnn.o.s. (Member # 1219) on :

HERE IT IS, I LOVE THE INTERNET! UNLIMITED INFORMATION [patriot]

http://www.hardcore50.com/technical_articles/Rears_and_Gears.htm

Posted by 50DADDY (Member # 3076) on :

Oh,tight!

Posted by jaybquick (Member # 4286) on :

The 23 tooth is NOT a ford part. It is a jeep part. That is why they don't last long. That is all 5.0Resto and others sell. So just go to any Dodge, Jeep or Chrysler dealer and ask for this part number.

j3167393

Here is a complete chart on my site below. I personally swithed to the 6 tooth drive gear for better support of low ratios in my T5, see chart.

http://www.jaybquick.com/Documents/Speedometer%20Recalibration%20Gears.doc

Posted by hidnn.o.s. (Member # 1219) on :

quote:
Originally posted by jaybquick:
The 23 tooth is NOT a ford part. It is a jeep part. That is why they don't last long.

Umm, DUHHHHH. Already posted above in my link. So if it were a ford part it would last longer [Roll Eyes]

The gears do not last long BECAUSE there are so many teeth so they have to be real thin. THAT'S THE REASON they do not last long, not because they are a jeep part.....

Posted by Jmir018 (Member # 1414) on :

quote:
Originally posted by hidnn.o.s.:
you have a 5 speed

get me a tune then for my b-day gift. [patriot]

[ December 08, 2005, 08:04 PM: Message edited by: Jmir018 ]

Posted by nitrous_bob (Member # 77) on :

quote:
Originally posted by 03SHKER:
We keep these here at Apex.
*Edit*
3.08 Gear Ratio / Yellow 18 Speedo Gear
3.27 Gear Ratio / Pink 19 Speedo Gear
3.55 Gear Ratio / Black 20 Speedo Gear
3.73 Gear Ratio / Red 21 Speedo Gear
4.10 Gear Ratio / White 23 Speedo Gear

those are all 5-speed driven gears.

an aod has a different pitch to the gear .

the 23 tooth is most you can get,and is the pitch for a t5, it won't last long cuz it won't mesh properly.if you want it to read correct, you need to replace the output shaft w/an older output shaft cuz the drive gear is machined onto the output shaft.

it's an 8 tooth drive i think in an aod.

you would need like a 6t drive , and a 18 tooth driven to work correctly on a stock sized tire.

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