Gear Break In Period

93tealstang

Founding Member

Jan 24, 2002

1,242

1

39

McSherrystown/Hanover Pennsylvania

Mar 28, 2009

#21

• Mar 28, 2009

• #21

White will work, but expect your speedo to become bouncy again in the future when the teeth on it bust off. I've read about guys' who simply keep putting white gears in instead of changing the driven gear. 20 bucks every year or so to keep your speedo correct and steady.....

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Mar 28, 2009

#22

• Mar 28, 2009

• #22

93tealstang said:

White will work, but expect your speedo to become bouncy again in the future when the teeth on it bust off. I've read about guys' who simply keep putting white gears in instead of changing the driven gear. 20 bucks every year or so to keep your speedo correct and steady.....

Click to expand...

so what exactly do i have to do then? pardon me for my ignorance, but the pbr;s have kicked in and well you know....

 

wannabefastfox

New Member

Mar 25, 2009

1

0

0

Sioux Falls, SD

Mar 29, 2009

#23

• Mar 29, 2009

• #23

I have a '91 as well and i'm about to put gears in. According to 50resto, you need two gears: a 7 tooth and a 21 tooth. They have the complete kit on their website for $24.99. That will be your best bet.

 

skunk21

Active Member

May 22, 2007

1,203

3

36

Taxachusetts

Mar 29, 2009

#24

• Mar 29, 2009

• #24

when I did mine I called ford racing and my buddy at the dealer to double check, they told me red 21 tooth. Mine speedo has been fine and according to those radar stands they put up in the side of the road my speed is correct.

The ford part # is C40Z-17271-A. 50 resto uses the 17271 # out of the ford part # and thier chart shows it for 3:73's and 3:27's.

 

B

bentley429

Banned

Nov 25, 2004

528

3

0

Connecticut

Mar 29, 2009

#25

• Mar 29, 2009

• #25

2 heat cycles hammer down.

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

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68

Maryland

Mar 29, 2009

#26

• Mar 29, 2009

• #26

so it looks like red now?

 

87MustangGT5.0

Member

Apr 16, 2003

153

0

17

Maryland

Mar 29, 2009

#27

• Mar 29, 2009

• #27

If you get red then your gonna have to change that gear in the tailshaft.

 

skunk21

Active Member

May 22, 2007

1,203

3

36

Taxachusetts

Mar 29, 2009

#28

• Mar 29, 2009

• #28

here is a chart from ford racing,

http://www.fordracingparts.com/download/charts/142.pdf


83-89 oem t-5 is 7 tooth drive gear

90-95 oem t-5 is an 8 tooth drive gear

&


pre- 1993 t-5 aftermarket are 7 tooth driven.

Take a look at the example on the bottom of the page, the phone # is also listed so you can give them a call if needed, they canb help you out also.

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Mar 29, 2009

#29

• Mar 29, 2009

• #29

so next question... how easy is it to change the speedo gear?

 

Beasty306GT

Active Member

Dec 19, 2002

671

4

28

Oxford,Mass

Mar 29, 2009

#30

• Mar 29, 2009

• #30

I just did mine.....its easy



INstalled


Its on the drivers side ull see it...

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Mar 29, 2009

#31

• Mar 29, 2009

• #31

thanks man, pics make everything easier, deffinitely something i can do on my own.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,255

17,939

224

Massachusetts

Mar 30, 2009

#32

• Mar 30, 2009

• #32

Which gear is easy.

Look inside your trans. If the gear inside on the shaft is yellow, you have a 7-tooth drive gear and need a red 21-tooth speedo gear.

If the gear on the shaft is green, it's an 8-tooth drive gear and you'll need the white 23-tooth for 3.73's.

Up to mid 89 was the 7-tooth and later was 8-tooth

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Mar 30, 2009

#33

• Mar 30, 2009

• #33

well i ordered a red, so thats whats going in