I had my transmision and clutch beefed up to handle the extra power I want to put to the car they did the input and output shafts went through the trans from front to back put in all heavy duty parts I have a DFX clutch with an alum flywheel the problem I have now is I have a vibration from like 85 on up to over 100 and its driving me crazy any sugestions I was thinking maybe the drive shaft but at this point not really sure I am going to talk to Don Walsh performance about replacing it with a new light weight one I was also thinking maybe rims and tires but it happened right after Pauls High Performance got done with the trans rebuild so I do not know if the drive shaft is 180 out or not and I do not want to take the car to them any more because of all the problems I had with them and the level 5 halfshafts so any sugestions :blowup:
xstork
Try rotating the Drveshaft 180 degrees. It was 100+ mph is where mine started. Rotated the DS and it went away. Also if you have a moderately worn set of Drag Radials on the rear that will also cause problems abovee 100. Elsewhere in the thread see the TSB of a New driveshaft. I asked someone to post the contents of the tsb
Instead Of Moving It 180 Try Indexing It 90 Degrees And Then Go Out And Test Drive It To See If It Is Any Better-if Not Move It Another 90 And So On To See If It Gets Any Better
Here is the ssm, it is a 2 phase process.
17248 2003 MUSTANG COBRA - DRIVELINE VIBRATION
SOME 2003 MUSTANG COBRAS MAY EXHIBIT A VIBRATION WHILE DRIVING. IF THE VIBRATION IS FELT AT 45 MPH AND INCREASES IN INTENSITY AS SPEED INCREASES, REPLACE THE REAR AXLE ASSEMBLY (FORD PART# 241L). IF THE VIBRATION IS FELT WHILE DRIVING AT LEAST 65 MPH AND INCREASES IN INTENSITY AS SPEED INCREASES, REPLACE THE DRIVESHAFT (FORD PART# 2R3J-4602-AA). IF THE VIBRATION IS FELT WHILE DRIVING AT LEAST 65 MPH AND DOES NOT INCREASE IN INTENSITY, BUT IS CONSTANT AS SPEED INCREASES, THEN NEUTRALIZE THE EXHAUST SYSTEM AS STATED IN THE 2003 WORKSHOP MANUAL SECTION 100-04.
EFFECTIVE DATE: 10/02/2003
17248 2003 MUSTANG COBRA - DRIVELINE VIBRATION
SOME 2003 MUSTANG COBRAS MAY EXHIBIT A VIBRATION WHILE DRIVING. IF THE VIBRATION IS FELT AT 45 MPH AND INCREASES IN INTENSITY AS SPEED INCREASES, REPLACE THE REAR AXLE ASSEMBLY (FORD PART# 241L). IF THE VIBRATION IS FELT WHILE DRIVING AT LEAST 65 MPH AND INCREASES IN INTENSITY AS SPEED INCREASES, REPLACE THE DRIVESHAFT (FORD PART# 2R3J-4602-AA). IF THE VIBRATION IS FELT WHILE DRIVING AT LEAST 65 MPH AND DOES NOT INCREASE IN INTENSITY, BUT IS CONSTANT AS SPEED INCREASES, THEN NEUTRALIZE THE EXHAUST SYSTEM AS STATED IN THE 2003 WORKSHOP MANUAL SECTION 100-04.
EFFECTIVE DATE: 10/02/2003
Drivetrain vibration
I want to thank you guys for the suggestions , I have a driveshaft on order its about 6 to 7 pounds lighter than the stocker so hopefully that will take care of it I will keep you guys posted on the progress and the steps that I have taken In case someone is having the same issues thanks again .
I want to thank you guys for the suggestions , I have a driveshaft on order its about 6 to 7 pounds lighter than the stocker so hopefully that will take care of it I will keep you guys posted on the progress and the steps that I have taken In case someone is having the same issues thanks again .
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