Gear noise

COUSIN ROB · 07-11-2005, 10:32 AM

I have recently had 3:73 gears installed in my 96 GT. They are great. They do make a bit of noise though. Is this normal or should they be 100 % quiet? Thanks.

Hammer · 07-11-2005, 09:19 PM

Is the noise coming from the rear or from the transmission?

Do you have the stock shifter?

Jeff Chambers · 07-12-2005, 06:34 AM

They should be quiet. If the noise showed up immediately after you had them installed, I'd suspect the install wasn't done quite correctly.

COUSIN ROB · 07-12-2005, 09:14 AM

I am sure the noise if from the rear end. No I don't have a stock shifter so i do get transmission noise too. I suspecr improper installation.
To correct it does it mean taking the whole thing apart again? I guess it is a shim problem.

Hammer · 07-12-2005, 10:22 PM

Quote:

To correct it does it mean taking the whole thing apart again?

Most likely.

I would take it back to whoever installed the gears...

COUSIN ROB · 07-13-2005, 09:12 AM

I took the car in to the guy that installed the gears last night. He agrees that there is too much noise coming from the gears. He figures it is the side to side shims that will need adjusting.
Thanks for your imput.
Does any body know the correct gear for the transmission to get the speedo right. I think the original was 18 tooth and the one in there now is 20. The speedo is still off by about 9 or 10% .

Hammer · 07-13-2005, 09:14 PM

It's been so long, I can't remember which speedo gear you'd use.... If I had to take a guess, I would say a 23 tooth...

To be honest, you're probably not going to get an "exact" reading even with the correct speedo gear, but it should be pretty close.

Here is a link to the FRPP usage chart, it even gives you the formula at the bottom to figure out just what speedo gear to use...

http://www.fordracingparts.com/download/charts/129.pdf

COUSIN ROB · 07-14-2005, 09:19 AM

Thanks for your help Hammer. Someone else mentioned that a 23 tooth gear is the one to use. I don't see a 23 tooth gear listed on the Ford Racing sheet. It only goes as high as 21. I will talk with the installer on monday when i take the car in.

07-11-2005, 10:32 AM	#1
COUSIN ROB Registered Member Join Date: Apr 2002 Location: VANCOUVER,CANADA Posts: 43	Gear noise I have recently had 3:73 gears installed in my 96 GT. They are great. They do make a bit of noise though. Is this normal or should they be 100 % quiet? Thanks.

07-11-2005, 09:19 PM	#2
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	Re: Gear noise Is the noise coming from the rear or from the transmission? Do you have the stock shifter? __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

07-12-2005, 06:34 AM	#3
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: Gear noise They should be quiet. If the noise showed up immediately after you had them installed, I'd suspect the install wasn't done quite correctly. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

07-12-2005, 09:14 AM	#4
COUSIN ROB Registered Member Join Date: Apr 2002 Location: VANCOUVER,CANADA Posts: 43	Re: Gear noise I am sure the noise if from the rear end. No I don't have a stock shifter so i do get transmission noise too. I suspecr improper installation. To correct it does it mean taking the whole thing apart again? I guess it is a shim problem.

07-13-2005, 09:12 AM	#6
COUSIN ROB Registered Member Join Date: Apr 2002 Location: VANCOUVER,CANADA Posts: 43	Re: Gear noise I took the car in to the guy that installed the gears last night. He agrees that there is too much noise coming from the gears. He figures it is the side to side shims that will need adjusting. Thanks for your imput. Does any body know the correct gear for the transmission to get the speedo right. I think the original was 18 tooth and the one in there now is 20. The speedo is still off by about 9 or 10% .

07-13-2005, 09:14 PM	#7
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	Re: Gear noise It's been so long, I can't remember which speedo gear you'd use.... If I had to take a guess, I would say a 23 tooth... To be honest, you're probably not going to get an "exact" reading even with the correct speedo gear, but it should be pretty close. Here is a link to the FRPP usage chart, it even gives you the formula at the bottom to figure out just what speedo gear to use... http://www.fordracingparts.com/download/charts/129.pdf __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

07-14-2005, 09:19 AM	#8
COUSIN ROB Registered Member Join Date: Apr 2002 Location: VANCOUVER,CANADA Posts: 43	Re: Gear noise Thanks for your help Hammer. Someone else mentioned that a 23 tooth gear is the one to use. I don't see a 23 tooth gear listed on the Ford Racing sheet. It only goes as high as 21. I will talk with the installer on monday when i take the car in.

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