Gear Break In Period

SteedaGT9150

Advanced Member

Nov 10, 2004

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Mar 28, 2009

#1

• Mar 28, 2009

• #1

like the title says.... how long for the break in process? thanks

 

Beasty306GT

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Dec 19, 2002

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Oxford,Mass

Mar 28, 2009

#2

• Mar 28, 2009

• #2

I just had mine done....its 500 miles break in period....First 100 miles dont beat on it...new gears need to mesh...could also have metal shavings in there....im half way broken in...then i got to change the gear oil

 

Dizzy_ax

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Mar 26, 2008

93

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8

Troutdale Oregon

Mar 28, 2009

#3

• Mar 28, 2009

• #3

id break them in, but i didnt! lol... really doesnt hurt to take it slow though. After i got them in i did a little pull here and there and then drove it about 300 miles normal. 100+ passes but you never know! each car is different and its better to be safe then sorry.

 

I_AM_CANADIAN

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Mar 30, 2005

189

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B.C.

Mar 28, 2009

#4

• Mar 28, 2009

• #4

There's usually two black strips leaving my driveway when I do mine Same with a new clutch

 

bubba-dough

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Dec 28, 2004

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Indiana

Mar 28, 2009

#5

• Mar 28, 2009

• #5

I am sure that you should, but I have never broken in new gears. I have never had a problem with them.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Mar 28, 2009

#6

• Mar 28, 2009

• #6

You are heat-cycling them to relieve stresses more than wearing in of the actual meshing surfaces.

You pretty much just get them hot and let them cool. About 500 miles of that hot-cold cycling will releive the internal stresses.

 

Grn92LX

Fidanza Man!

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Mar 28, 2009

#7

• Mar 28, 2009

• #7

No break in needed at all unless you're doing new bearings. If so, a heat cycle or 2 is all you need. Obviously with new gears drive it normally at first to check for noises on accell and decell.

 

SteedaGT9150

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#8

• Mar 28, 2009

• #8

thanks guys thats what i needed to hear. ive been waiting all day to pick it up and im finally leaving work to get it.

 

fiveohwblow

Official Member

15 Year Member

Jul 21, 2005

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Mar 28, 2009

#9

• Mar 28, 2009

• #9

ENJOY!!!! Let us know how it feels!

 

Beasty306GT

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Dec 19, 2002

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Mar 28, 2009

#10

• Mar 28, 2009

• #10

What gears you go with?? Ur gonna love em

 

nunly94gt

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Feb 3, 2002

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Mobile, Al

Mar 28, 2009

#11

• Mar 28, 2009

• #11

We never break them in at the dealership. No matter the car, cause nobody listens if you say to. We drive them about 20 miles ourselves and at all speeds if you dont hear any howling or whining your fine.

 

SteedaGT9150

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#12

• Mar 28, 2009

• #12

QUICK! what color speedo gear do i need? 373's for a 5 speed. gears are awesome but the speedos driving me crazy already

 

1991notchbackLX

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Dec 25, 2007

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Mar 28, 2009

#13

• Mar 28, 2009

• #13

mine was white i believe

 

SteedaGT9150

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#14

• Mar 28, 2009

• #14

thank ya sir. cars parked for the evening, going to enjoy some PBR's and chill with friends. ill update tomorrow after i beat on her a little bit

 

Beasty306GT

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Dec 19, 2002

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Mar 28, 2009

#15

• Mar 28, 2009

• #15

SteedaGT9150 said:

QUICK! what color speedo gear do i need? 373's for a 5 speed. gears are awesome but the speedos driving me crazy already

Click to expand...

I just put a red gear in the tranny 23 tooth....mines an 89...with 373's
speedo works perfect

 

SteedaGT9150

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#16

• Mar 28, 2009

• #16

ok so which one is it?

 

1991notchbackLX

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Dec 25, 2007

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Mar 28, 2009

#17

• Mar 28, 2009

• #17

your car is a 1991, just like mine... i have a factory v8 5 speed with 3:73s and mine took a white 23 tooth, that should be the one you need

 

Beasty306GT

Active Member

Dec 19, 2002

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Oxford,Mass

Mar 28, 2009

#18

• Mar 28, 2009

• #18

Ring & Pinion Speedo Gear Part Number
1983-89 Mustang Manual 5-Speed
3.08 18 Tooth
3.27 19 Tooth
3.55 20 Tooth
3.73 21 Tooth
4.10 23 Tooth

1990-93 Mustang Manual 5-Speed
3.08 20 Tooth
3.27 21 Tooth
3.55 23 Tooth

there isnt one for a 91 and 373

 

93tealstang

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Jan 24, 2002

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Mar 28, 2009

#19

• Mar 28, 2009

• #19

With the 1990 and up's, the white gear will be close but it will only last temporarily. Mine got chewed up after a little over a year. To completely fix the speedo and make it correct, you'll have to swap out the transmission tailshaft "driven" gear along with a speedo drive gear.

The white speedo gears and not actually a Ford made gear. They are a factory Jeep gear. Many companies sell and market them as Ford's but if they were Ford made, they wouldn't get chewed up since the gears simply don't mesh correctly. The white gears are just a simple temporary fix.

 

SteedaGT9150

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#20

• Mar 28, 2009

• #20

white it is