4.10 Gears installed, questions?

mpentico

New Member

Dec 7, 2004

181

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Aug 11, 2005

#1

• Aug 11, 2005

• #1

Hey all,

Finally got my 4.10's installed on the stang.

They did not seem to hurt the cars drivability in any way.
(I was a bit concerned about 1st gear being too agressive)

I have noticed a great improvement in 3rd and 4th gear acceleration.
5th gear is really nice, no more lag.... just give it gas and it goes!

The not so good thing is the gear noise.
It has a considerable "whine" on both acceleration and deceleration.

Has anyone else experienced an increase in whine after installing new gears?
After a 50 mile drive it got better, but it is still not nearly as quiet as the originals.

 

DarkFireGT

Playing with my wife's really makes me want one.

10 Year Member

May 23, 2004

692

10

89

East Moline, IL

Aug 11, 2005

#2

• Aug 11, 2005

• #2

did you buy FRPP gears or Motive? FRPP should have the least. The guy that installed mine works on stock cars and has done over 100 Mustangs. That said, he spent 4 days trying to get it right. He'd shim it a couple of thousandths, then put it all back together, and still have whine. It still has a small bit of whine, but not very much. With the intake and programmer, the engine is louder so unless I listen intently, I don't hear it.

 

D

discofan

Member

Apr 21, 2005

108

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16

Aug 11, 2005

#3

• Aug 11, 2005

• #3

I got a set of Ford Racing Gears installed in my automatic about 1 month ago...

From the day I drove to car out of the shop, these gears have been "as smooth as silk" with no noise at all...

If you purchased quality gears,then I would look to the installer for advise...

These gears (no matter what the ratio) should not give you any noticeable noise were accelerating or decelerating...

Dave

 

knight_rider69

New Member

Oct 14, 2004

45

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Montreal, Canada

Aug 11, 2005

#4

• Aug 11, 2005

• #4

I have the Ford Racing 4.10s and the only thing noise i notice is the higher revving when cruising on the highway, but that was to be expected. I love 'em though.

 

DarkFireGT

Playing with my wife's really makes me want one.

10 Year Member

May 23, 2004

692

10

89

East Moline, IL

Aug 11, 2005

#5

• Aug 11, 2005

• #5

I think mine have a hard spot in them. but Ford wanted us to pay to ship them back and blah blah blah they were big jerks about it. after shimming it 20 different times, I hardly have any noise, i mean it's super faint, you really REALLY have to listen for it... so I figured it wasn't worth the hassle.

 

dpjedi

Founding Member

Feb 11, 2000

392

0

16

Plant City FL (east of Tampa)

Aug 12, 2005

#6

• Aug 12, 2005

• #6

FRPP 4.10's here and they're as quiet as the stock 3.55's were.

 

NVERL8

Member

Mar 31, 2005

72

3

9

Cincinnati

Aug 12, 2005

#7

• Aug 12, 2005

• #7

discofan, how do you like the 4.10's with the auto. I was thinking of doing the same thing but I was not sure to go with 3.73's or 4.10's. What gear is stock?

 

FartBoy

New Member

Apr 22, 2005

58

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Houston

Aug 12, 2005

#8

• Aug 12, 2005

• #8

What are 8.8 4:10 Gears going for?

 

mpentico

New Member

Dec 7, 2004

181

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0

Aug 12, 2005

#9

• Aug 12, 2005

• #9

After all these posts, it looks like I should have went with Ford gears instead of Motive.

I intend to take the car back and get the guy to re-set them next week.

Anyone know where I can find pictures posted on the internet of the correct paint/marker pattern that should be made by the gears when we check the set up? I watched the process last time, and want to know what to look for this next time!

As for driving with the 4.10's.... not bad.
I need to re-flash the computer so the speedo will be correct to really get an accurate assesment.

 

scro

Founding Member

Dec 5, 1999

67

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0

Aug 12, 2005

#10

• Aug 12, 2005

• #10

mpentico said:

Anyone know where I can find pictures posted on the internet of the correct paint/marker pattern that should be made by the gears when we check the set up? I watched the process last time, and want to know what to look for this next time!

Click to expand...

There's a chart on this page:

http://www.drivetrain.com/ringpinioninstal.html

 

DarkFireGT

Playing with my wife's really makes me want one.

10 Year Member

May 23, 2004

692

10

89

East Moline, IL

Aug 12, 2005

#11

• Aug 12, 2005

• #11

NVERL8 said:

discofan, how do you like the 4.10's with the auto. I was thinking of doing the same thing but I was not sure to go with 3.73's or 4.10's. What gear is stock?

Click to expand...

Stock is 3.53, so you'll barely feel a difference with 3.73's. Don't fear the gear. 4.10's will do you well.

Yes, Motive gears have alot more likelyhood of gear whine than FRPP's. I'm taking mine back to my mechanic next week to check the crush sleeve. I think it's on too tight b/c after further inspection initiated by this post, it's not a whine I'm getting, it's a different noise. So I'm pretty sure it's the crush sleeve. So, I take that back. My FRPP's are not whining

 

B

bigaloz

New Member

Nov 11, 2004

50

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0

New Jersey

Aug 13, 2005

#12

• Aug 13, 2005

• #12

Just installed 4.10's on my auto. About the same as stock when it comes to the gear whine.

I also just installed the C & L, Excal 2 Alternative auto tune, and absolutely love it.

 

Bags2005

New Member

Aug 13, 2005

19

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0

Davis, CA

Aug 14, 2005

#13

• Aug 14, 2005

• #13

What's your ETs with 4.10s? Is there a largely noticable difference in gas mileage? Thanks

 

cleveland

Founding Member

Feb 19, 2002

579

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SF>...

Aug 14, 2005

#14

• Aug 14, 2005

• #14

How much are you folks paying for the install?

-Dan

 

bigcat

start with the upper hole, and if more traction is

May 1, 2005

3,015

1

79

7200 feet

Aug 14, 2005

#15

• Aug 14, 2005

• #15

dan, i found a good tech at ford that does work on the side. he says i buy everything, and he will install for $75. he does good work, and is highly recommended from two people i know well. he does everything from gears to superchargers....i have not looked into a shop installing them since february, and forgot what they wanted...

 

cleveland

Founding Member

Feb 19, 2002

579

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SF>...

Aug 14, 2005

#16

• Aug 14, 2005

• #16

Sweet Hey Sus, I need to grab a hook up.

-Dan

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

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Northern KY

Aug 14, 2005

#17

• Aug 14, 2005

• #17

I'm not sure if anyone mentioned this, but remember that the new 'stangs have bigger wheel diameter than previous versions, and in some cases are rolling 20s and larger, so 4.10s are actually some what tame when you consider the overall diameter of the tire they're pushing.

 

B

bigaloz

New Member

Nov 11, 2004

50

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0

New Jersey

Aug 15, 2005

#18

• Aug 15, 2005

• #18

cleveland said:

How much are you folks paying for the install?

-Dan

Click to expand...

Nothing! My buddy owns a shop, and we did it after hours.